Journal articles on the topic 'Cassava flour industry'

Cassava flour has a good potential to substitute wheat flour for various food products and have a good opportunity to developed. The farmers prefer to cultivate local types of cassava compared to superior varieties national. Fresh cassavas contain cyanide acid (HCN), which is harmful to health. Knowledge and skills in processing of cassava is needed to produce fresh cassava become safety product. The aimed of this research was to conducted to: 1) Examine the agronomic potential of local cassava as raw material for cassava flour industry , 2) Study quality cassava flour produced from three different types of local cassava. Cassava used in this study was a local type i.e.: “ketan”, “Pb”, “Sambung”. The method of processing cassava flour was dried cassava method “gaplek”, wet method “tapioka fermentation method “mocaf”. In general all types of local cassava had a good agronomic potential and safe to be processed into cassava flour. Mocaf from “Pb” type gave the best result. The best tapioca was produced from “ketan” type of cassava. Key Words: Cassava Flour, HCN, Local Types of Cassava ABSTRAK Tepung ubi kayu mampu menggantikan tepung terigu untuk berbagai produk pangan dan berpeluang bagus untuk dikembangkan. Petani lebih suka membudidayakan ubi kayu jenis lokal dibandingkan dengan varietas unggul nasional. Ubi kayu segar mengandung HCN yang berbahaya bagi kesehatan. Diperlukan teknik yang baik untuk mengolah ubi kayu menjadi produk yang aman dikonsumsi oleh masyarakat. Tujuan penelitian ini adalah: 1) Mengkaji potensi agronomis ubi kayu jenis lokal sebagai bahan baku industri tepung ubi kayu.2) Mengkaji kualitas tepung ubi kayu yang dihasilkandari tiga jenis ubi kayu lokal yang berbeda Ubi kayu yang dipakai dalam penelitian adalah ubi kayu lokal jenis ketan, Pb dan ubi sambung. Metode pengolahan tepung ubi kayu yang dilakukan adalah metode kering gaplek, metode basah tapioca dan metode fermentasi mocaf. Secara umum semua ubi kayu jenis lokal berpotensi agronomis dan aman untuk diolah menjadi tepung ubi kayu. Mocaf dari ubi jenis Pb memberikan hasil terbaik. Tapioka terbaik dihasilkan dari ubi kayu jenis ketan. Kata Kunci :HCN, Tepung ubi kayu, Ubi kayu lokal

Cassava is a significant food security and industrial crop, contributing as food, feed and industrial biomass in Africa, Asia and South America. Breeding efforts have led to the development of cassava variants having desirable traits such as increased root, flour, and starch yield, reduced toxicity, reduced pest/disease susceptibility and improved nutrient contents. Prominent among those breeding efforts is the development of colored-flesh cassava variants, especially biofortified yellow-fleshed ones, with increased pro-vitamin A carotenoids, compared to the white-flesh variants. The concept of sustainability in adoption of biofortified yellow-flesh cassava and its products cannot be fully grasped without some detailed information on its properties and how these variants compare to those of the white-flesh cassava. Flour and starch are highly profitable food products derived from cassava. Cassava roots can be visually distinguished based on flesh color and other physical properties, just as their flours and starches can be differentiated by their macro- and micro-properties. The few subtle differences that exist between cassava variants are identified and exploited by consumers and industry. Although white-flesh variants are still widely cultivated, value addition offered by biofortified yellow-flesh variants may strengthen acceptance and widespread cultivation among farmers, and, possibly, cultivation of biofortified yellow-flesh variants may outpace that of white-flesh variants in the future. This review compares properties of cassava root, flour, and starch from white-flesh and biofortified yellow-flesh variants. It also states the factors affecting the chemical, functional, and physicochemical properties; relationships between the physicochemical and functional properties; effects of processing on the nutritional properties; and practical considerations for sustaining adoption of the biofortified yellow-flesh cassava.

Okara is a nutritious by-product of soy milk industry; however it is discarded as industrial waste because it is perishable and other uses for it have not been fully identified. The feasibility of utilization of okara in food formulations was investigated. Five blends of composite flour were prepared by combining cassava flour with 10% to 50% of okara flour, respectively. The 100% cassava flour served as control. The functional and pasting properties of the flour blends as well as the chemical and sensory properties of biscuit samples were determined. Statistically significant (p≤0.05) difference in functional properties was observed between cassava flour supplemented with different levels of okara. The pasting properties showed that peak and final viscosities decreased with increase in level of okara flour in the blend. The biscuit samples had protein (4.7-11.9%), ash (1.63-2.17%), crude fibre (17.13-20.38%), fat (17.9- 23.4%), carbohydrate (34.9-53.0%) and energy (349.8-363.5 Kcal/g). Anti-nutritional components (oxalate, phytate and tannin) were significantly affected by inclusion of okara in the formulation. The sensorial characteristics of biscuits prepared from cassava and okara showed significant difference (p≤0.05) compared to the control. Cassava flour could be supplemented with okara flour up to 20% level in the production of biscuits with improved nutritional quality without affecting sensorial acceptability. The results from this study could be adopted by indigenous food industries that want to take the functional and nutritional advantage of okara flour to supplement starchy food ingredients.

Nutritional deficiencies are common among children in Colombia, and innovative strategies and supplements are needed in order to effectively address this problem. For example, in Colombia, when measured as ferritin, iron deposits are deficient in 58.2% of children between two and eight years of age. If a formulation is made with highly nutritional ingredients, cookies will have the potential to be used as supplements in children's diets because of their simple manufacturing process, long shelf life, and high acceptability. This study aimed to develop biofortified cookies, based on a bean-cassava-wheat flour mix, for children. The methodology grouped several studies in order to define the best treatment for the production of bean flour and the flour mix to produce cookies, prioritizing the nutritional content and the microbiological and sensorial quality. A production procedure for bean-based flour, suitable for the production of cookies with adequate nutritional, sensorial and microbiological characteristics was obtained. Additionally, the rheological characteristics of the proposed flour mixes permitted other possible uses for the bread-making industry, substituting cereal flours with flours with higher micronutrient contents. However, further studies are needed to determine the nutritional effects of the regular ingestion of biofortified cookies on children.

Uganda produces cassava, which has potential as a raw material for agro-industry. In this study, wheat flour was blended with high quality cassava flour in the ratios 100:0, 90:10; 80:20; 70:30; 60:40; 50:50 and 40:60 and the composite dough used to prepare bread. The doughs were subjected to rheological analysis using mixolab, consistograph and alveograph. Bread physical properties were measured and sensory qualities evaluated to correlate rheological characteristics of flour/dough with bread quality. Inclusion of cassava flour in the composite dough negatively affected the quality of the composite bread compared to the control. Bread volume (631.0 to 516.7 cm3) decreased, specific volume (2.065 to 1.574 cm3/g) decreased, bread density (0.49 to 0.63 g/cm3) increased. Mean scores for sensory quality parameters reduced: crust colour (6.88 to 4.63), taste (7.13 to 4.25), crumb texture (6.5 to 4.63) and overall acceptability (8.13 to 4.5). Bread quality was positively correlated with mixolab parameters protein weakening (C2), dough stability and dough development time (DDT); alveograph parameters tenacity (P) and deformation energy (W); and consistograph parameter maximum pressure (PrMax). Results showed that bread of acceptable quality can be processed using wheat composite containing 20 % cassava flour. Rheological properties can be used to assess suitability of flour for bread making.

Aspergillus phoenicis is an interesting heat tolerant fungus that can synthesize enzymes with several applications in the food industry due to its great hydrolytic potential. In this work, the fungus produced high enzymatic levels when cultivated on inexpensive culture media consisting of flakes from different origins such as cassava flour, wheat fibre, crushed soybean, agro-industrial wastes, starch, glucose or maltose. Several enzymatic systems were produced from these carbon sources, but amylase was the most evident, followed by pectinase and xylanase. Traces of CMCases, avicelase, lipase, β-xylosidase, β-glucosidase and α-glucosidase activities were also detected. Amylases were produced on rye flakes, starch, oat flakes, corn flakes, cassava flour and wheat fibre. Significant amylolytic levels were produced in the culture medium with glucose or when this sugar was exhausted, suggesting an enzyme in the constitutive form. Cassava flour, rye, oats, barley and corn flakes were also used as substrates in the hydrolytic reactions, aiming to verify the liberation potential of reducing sugars. Corn flakes induced greater liberation of reducing sugars as compared to the others. Thin layer chromatography of the reaction end products showed that the hydrolysis of cassava flour liberated maltooligosaccharides, but cassava flour and corn, rye, oats and barley flakes were hydrolyzed to glucose. These results suggested the presence of glucoamylase and α-amylase as part of the enzymatic pool of A. phoencis.

Drying method that is applied in flour manufacturing industry, one of which is pneumatic drying. Variable types of both the properties of the dried material and the conditions of the drying process greatly affect the quality of the results of drying. Water content is an important variable in determining the quality of flour. The purpose of this study was to find the effect of drying air temperature on the moisture content of cassava flour under the conditions of the pneumatic drying process. Drying of cassava flour at desiccant air temperatures of 145oC and 160oC with 2 drying cycles produced a moisture content of 11.3 and 8.7% wb and had fulfilled SNI for flour water content, which was a maximum of 12% wb. The higher the temperature of the drying air, the lower the moisture content.

Cassava bagasse is a by-product of tapioca industry whose use as food is relatively limited.The improvement of the cassava bagasse flour characteristics as a food ingredient can bedone through a semi-solid fermentation process. The aim of this study was to examine thechanges in physicochemical characteristics of cassava bagasse flour during the semi-solidfermentation process using Saccharomyces cerevisiae. The semi-solid fermentation processwas carried out for 0 days (control), 1 day, 2 days, 3 days, 4 days, and 5 days. Observationsof physicochemical characteristics include pasting characteristics, microstructure, waterabsorption index, and water solubility index. The results showed that the fermentationprocess had no effect on the gelatinization temperature but affected the viscosity of thecassava bagasse flour; during fermentation, liberation and erosion of the starch granule willbe more intense occur, as well as an increase in water absorption index and water solubilityindex.

Indonesia is a country having abundant natural resources, including nutritious plants as a source of food and medicine. Along with the increasing public awareness of the importance of healthy living, there is a great shift in the demand of food. At present, people do not only want foods that have good nutritional composition as well as attractive appearance and taste, but also the ones that have certain physiological functions for the body. The foods that have such functions are known as functional foods. One ingredient that has the potential to be developed into functional food is mocaf flour. It is made from cassava which is made from the fermentation principle by modifying the cassava cells. This study aims to reveal the conditions for the development of the functional food industry made from mocaf flour in Indonesia using the value chain approach. This study was a qualitative research by using multiple case studies along the value chain. The data were collected from review of secondary data, in-depth interviews, and observations in each case study. The case study locus was the center of the mocaf-based food industry in West Java. The results showed that (i) the mocaf-based functional food industry in Indonesia was not developed; (ii) the development of mocaf-based industries was constrained by the high cost of cassava raw materials; (iii) the productivity of cassava plants was still low; (iv) the role of R & D institutions was very much needed; and (v) government intervention is needed.JEL Classification: L88, O00, Q18

Lestari T, Apriyadi R. 2017. Genetic potential of cassava biodiversity in Bangka Island, Indonesia. Cell Biol Dev 2: 41-45. Cassava is potential as a mixture ingredient of flour in the Bangka’s food industry. This study aimed to discover the biodiversity of local cassava in Bangka. This research was conducted in experimental field of the Faculty of Agriculture, University of Bangka Belitung, Indonesia from July 2015 to July 2016. The experimental design was randomized block design with 10 local cassavas of Bangka that consisted of upang, sekula, bayel, mentega, kuning, batin, pulut, sutera, rakit, and Selangor. Isozyme analysis performed using starch gel electrophoresis with horizontal models. Analysis for five Bangka local cassava varieties and one National cassava variety used RAPD group OP A and OP B. The results showed that the phenotypic performance was different on the type of plant, the morphology of leaves, stems, and tubers of local cassava of Bangka. Isozyme analysis showed polymorphic banding pattern, while the eight RAPD primers used did not produce polymorphic. This research showed Bangka local cassava morphologically different based on visual observation. Morphological character of Bangka local cassava leaf was divided into three shapes of lobe: ellipse (upang, sekula, bayel, mentega, batin, pulut, rakit, Selangor), linear (kuning) and lanceolate (sutera). This research data showed that the genetic diversity of local cassava in Bangka relatively high. Bangka local cassava has genetic potential as plant propagation material for plant breeding.

Amylases are among the most important enzymes with potential applications in the present-day industry. Thus, isolating pure culture from cassava as the cheap source has manifold importance for food industries. In the present study, eleven amylase producing fungal strains were isolated from cassava flour and growth pattern, as well as optimum growth condition, was determined. All isolates showed amylases activity but isolate BR005, BR001 and GR003 recorded maximum clear zone diameters of 54.75 ± 0.957 mm, 53.25 ±0.645 mm 51.5 ± 1.414 mm, respectively. The submerged fermentation method was employed for crude amylase and biomass production. There were significant differences (p˂0.05) in starch concentrations and growth rates between the three isolates. GR003 and BR005 attained their optimal amylase activities of 4.23±0.25 U/mL and 3.75±3.16 U/mL at 50 °C, respectively, whiles BR001 attained its optimum amylase activity of 3.43±0.77 at 60 °C. Whereas, BR005, BR001 and GR003 attained their optimal amylase activity of 5.14±1.99 U/mL, 4.53±0.01 U/mL and 1.25±1.11 U/mL at a pH range of 6 to 7, making them neutrophilic fungi. Moreover, isolates BR005, BR001 and GR003 recorded the highest amylase activities of 4.31±0.14U/mL, 4.67±1.16±U/mL and 3.16±0.12U/mL at the starch concentrations of 3%, 2%, and 2.5% and fermentation period of 48 h, 66 h and 42 h, respectively. Lastly, BR005, BR001 and GR003 achieved their optimal amylase activities of 5.41±0.11U/mL, 6.24±0.14 U/mL and 6.22±0.12 U/mL at 48 h, 66 h and 42 h of incubation, accordingly. Indicating that cassava flour is a good source of amylolytic fungi with a potential application under wide conditions.

One of the drying methods, which are applied in the industry of flour production, is that pneumatic drying. A wide variety of the variables that are from both of the characteristics of the dried material and drying process condition greatly affect the quality of drying result. Fineness Modulus (FM) and average diameter of flour are important variables in determining the quality of the flour. The objectives of this research was to formulatea mathematical relationship between various pneumatic drying process variables with the fineness modulus of the materials of cassava flour by applying dimensional analysis. In order to realize this goal, pneumatic drying equipment has been designed and tested with a wide variety of treatments such as the input capacity, drying air velocity, particle’s flour diameter, and temperature of air dryer as well.Keywords: Cassava flour, pneumatic drying, dimensional analysis, fineness modulus ABSTRAKMetode pengeringan yang diterapkan dalam industri pembuatan tepung salah satunya adalah pneumatic drying. Berbagai macam variabel baik dari sifat-sifat bahan yang dikeringkan maupun kondisi proses pengeringan sangat mempengaruhi kualitas hasil pengeringan. Fineness Modulus (FM) dan diameter tepung rata-rata merupakan variabel-variabel yang penting dalam penentuan kualitas dari tepung. Tujuan dari penelitian ini adalah untuk mencari hubungan matematis antara FM dengan variabel-variabel kondisi proses pengeringan pneumatik. Untuk dapat mewujudkan tujuan tersebut telah dirancang peralatan pneumatic drying dan dilakukan pengujian dengan berbagai macam variasi perlakuan seperti kapasitas input, kecepatan udara pengering, diameter partikel tepung, dan temperatur udara pengering.Kata kunci: Tepung ubi kayu, pneumatic drying, analisis dimensi, fineness modulus

Potential and opportunities for cassava development are still very broad along with development of companies in livestock, processed food, and other industries. Added value of cassava commodities resulting from development of downstream industries (processed products) is far higher than upstream industries (primary products), so that development paradigm in agriculture sector in future should be directed towards product expansion including its waste. This study aims to examine the economic value of cassava as a future crop from direct as well as by-products and their development strategies. Data was collected from small-scale tapioca flour farmers, ranchers and entrepreneurs. SWOT analysis was used to determine relevant development strategies. Analysis shows that cassava has an potential, especially as a raw material for food and feed industry. In short term, developing cassava strategy as an industrial raw material is to use new technologies i.e. varieties and cultivation techniques for planting arrangements. Cassava potential economic value is relatively high in terms of farming aspects, food raw materials, feed and industry. This potential, apart from main product, is also by-product that has been neglected at 29.7% of cassava main value. By-products potensial has not been used optimally and a bioeconomic value of biomass that can support integrated agriculture in the future.

The production of mocaf flour in MSME scale in South Kalimantan area was not feasible considered from its business feasibility hence the multiple effect was unmeasured based on its industry existence. Mocaf flour production derived from cassava, which is a plant that not only match on dry land but also in the wetlands of South Kalimantan, can not be oriented consumer as a substitute for wheat flour for common food products in the society. Therefore, further research refers to aspects mocaf flour premium for health. This objective of this research was to increase the society consumption of mocaf flour for the healthy reason related to the trend on negative effect from high level of gluten in wheat flour. The laboratory test showed the result that supports mocaf product for health. With this consideration then mocaf processed product have potentials to bedeveloped though serious marketing effort is required due to infamiliarity of the mocaf flour especially in South Kalimantan area. Difference test result showed that prospects, indeed, haveintention to purchase mocaf-based processed products for healthy reason.

Singkong gajah (Manihot utilissima) is a tuber crop that contains high carbohydrates but its use in food industry is still less when compared to ordinary cassava. Until now there have been many studies on the characteristics of mocaf of ordinary cassava, such as time of fermentation, yeast concentration, and drying techniques, but no one has examined further of the characteristics of mocaf of singkong gajah (MSG), especially in terms of its amylographic properties. This study aims are to examine the chemical characteristics and amilographs of elephant cassava (MSG) mocafs, and compare them to commercial flour. Singkong gajah was fermented using 0.25% yeast of tape by the weight of singkong gajah chips and soaked for 16 hours. Data displayed are based on dry weight and all analyzes were performed in three replications and the results are presented as mean values. MSG contains 0.84% of crude fiber; 84.44% of starch; 2853 cP of peak viscosity value ; 3199 cP of breakdown viscosity ; 680 cP of viscosity of setback ; and 77.10oC of temperature of gelatinization. The high viscosity and resistance to retrogradation and the low temperature of gelatinization indicate that MSG can be applied to cream or sauce soup products, which in the process and the final product requires a very thick starch.

Small and Medium Enterprises play an important role for economic growth in Indonesia. As an agricultural country, development on agricultural sector should be done to meet the needs of industries. As agricultural commodities, cassava requires processing efforts to increase the product value. Anis Jaya has been processing tapioca flour since 1983 in the center of tapioca flour on Pogalan, Trenggalek Regency. Since 2015, Anis Jaya has decreased production number, due to the decline on market demand. This has an impact on the decline of cassava purchasing price by industry. Therefore, the objective of this research is to analyze the feasibility of Anis Jaya business and to analyze business competitiveness using Porter’s Diamond model approach for business development. The analysis shows that the Net Present Value is Rp. 88.690.571,74 (NPV > 1), Internal Rate of Return is 54,98% and Payback Period less than 1 year. Net B/C ratio of Anis Jaya is 2,82 which indicates that the industry is still worth continuing. The formulated development strategy is making efficiency by adding capital, improving product and service quality, optimizing labor performance, and managing raw material inventory and auxiliary materials.

One of drying method applied in flour milling industry is pneumatic drying. Various kinds of variable both dried materials and drying process condition strongly influence the quality of drying result. Fineness Modulus (FM) and Water Rate are significant variables in defining the flour quality. The aim of this study is to identify the influence of dryer air temperature on FM and Moisture Content in pneumatic dryer process condition. Both variables have sufficiently big coefficient of determination value; therefore, it can be employed to predict well the fineness modulus and water rate of the flour.

<p><strong>English</strong><br />Total Indonesian population of 250 million people leads to some crucial problems in provision and management of staple food. Main sources of staple food are cereal, mainly rice. Another important source of carbohydrate is imported wheat flour and it discourages national food security. Meanwhile, as a tropical country, Indonesia has many sources of carbohydrates (food crops) such as tuber crops (cassava, sweet potatoes), cereals (corn), and palm (sago) potentially replace partially or entirely the consumption of rice and wheat flour. This paper discusses the food politics within the perspective of food security based on composite flours as substitution or replacement of wheat flour. Natural growth of local commodity based on flour industry is very slow and it needs some efforts and policies on its acceleration. It suggests some policy recommendations on how to strengthen and accelerate composite flour industries. Required policy includes assistance, value-added tax relief, and promotion. Value-added tax paid by the government is considered as an incentive to wheat importers and flour industry to develop composite flour.</p><p> </p><p><strong>Indonesian</strong><br />Penduduk Indonesia saat ini lebih dari 250 juta jiwa menimbulkan banyak permasalahan pada pangan pokok sehingga perlu mendapatkan perhatian serius. Pangan pokok sumber karbohidrat yang banyak dikonsumsi adalah beras dan terigu. Sebagai sumber karbohidrat penting, terigu bukan produksi lokal yang membawa persoalan ketahanan pangan dan menguras devisa negara. Indonesia memiliki beragam sumber karbohidrat lainnya, baik dari serealia, umbi-umbian, maupun palma yang belum dimanfaatkan. Tujuan tulisan ini adalah untuk mengkaji pentingnya politik pangan berbasis industri tepung komposit dalam rangka mendukung ketahanan pangan nasional. Pertumbuhan industri tepung secara alamiah tidak dapat diharapkan terjadi dengan cepat dan berkontribusi nyata terhadap ketahanan pangan. Produksi dan perdagangan terigu telah menjadi bagian dari sistem pangan, industri, dan ekonomi nasional sehingga pengendalian yang tidak cermat dapat menimbulkan gejolak sosial dan ekonomi. Membiarkan berjalan tanpa kendali dapat menimbulkan kesulitan pangan dimasa mendatang, sebaliknya mengatur secara ketat menimbulkan persoalan sosial dan ekonomi terkait kesempatan kerja. Oleh karena itu, diperlukan kebijakan komprehensif yang mendorong perkembangan industri tepung komposit. Penyelarasan antara pertumbuhan konsumsi tepung dengan pemanfaatan bahan pangan lokal melalui pengembangan tepung komposit perlu diatur dengan kebijakan komprehensif yang kondusif. Kebijakan yang diperlukan meliputi pendampingan, keringanan, dan promosi. Kebijakan Pajak Pertambahan Nilai ditanggung pemerintah dapat dipertimbangkan sebagai salah satu upaya mendorong importir gandum dan industri terigu untuk mengembangkan tepung komposit.</p>

In the processes of industrialization of cassava flour (Minihot esculenta), there is the generation of an effluent called manipueira, which requires treatment before being released into the water body. The objective of this work was to evaluate the efficiency of effluent degradation by an anaerobic reactor, using as substrate, manipueira of a flour producing industry, and, as inoculum, two distinct sludges, one from an anaerobic reactor of ascending flow (RAFA) of domestic sewage treatment plant, and another from the activated sludge system of effluent treatment of a grain producing industry. The efficiency of the process was evaluated by the physicochemical parameters: COD, BOD, total solids (TS), total volatile solids (STV), fixed total solids (STF), pH, turbidity and cyanide. Throughout the treatment there was a significant removal of Cyanide in the effluent, that is, one of the major problems of the effluent can be solved effectively via anaerobic treatment.

Cassava (Manihot esculenta) Peels supplementation in feed was evaluated on quality and quantity of dairy cattle production. Cassava peels were waste product of tapioca flour industry. A total of 26 lactation dairy cattle breed Friesian Holstein cross breed maintained at individual cage at farm on Kawi Mountain, Malang, East Java. It was randomly allotted to treatment and control group (13 head of cattle in each group). Treatment group were fed with cassava peels base dietary, whereas control group were fed by grass and commercial ration dietary. After a month, the quality and quantity of milk were recorded daily for a month and analyzed on automatic milk analyzer. The result showed significant changes (p<0.05) on treatment group were shown on percentage of protein (2.87%), lactose (4.40%), solid nonfat (8.49%), and total solid (12.23%). This quality of milk only needed cost of 1.15 €/head/day compared with control group which needed 2.02 €/head/day. These results indicated that cassava peels in feed can produce higher total solid and protein level of milk than control group. They also have high potential as a feed source to cut production cost; therefore, the farmer income increased slightly.

<p>Produksi bersih merupakan salah satu strategi dalam sustainable manufacturing yang dapat digunakan untuk meningkatkan kinerja lingkungan di industri pengolahan keripik singkong. Tahap awal dalam penilaian produksi bersih adalah identifikasi peluang produksi bersih dengan metode analisis deskriptif dan analisis keseimbangan material dan energi. Berdasarkan analisis neraca keseimbangan material dan energi, jumlah bahan baku 3,6 ton singkong menghasilkan non product output air sisa pencucian, 1,5 liter minyak jelantah dan 900 kg kulit singkong. Berdasarkan analisis neraca kesetimbangan massa dan energi tersebut, terdapat 5 peluang produksi bersih yaitu penghematan air, produksi sabun dari minyak jelantah, pengolahan kulit singkong menjadi tepung kulit singkong, kerupuk kulit singkong dan gula cair. Perlu dilakukan penelitian lanjut berupa sintesis untuk menentukan alternatif terbaik dari beberapa peluang produksi bersih yang telah teridentifikasi.</p><p><em>Kata Kunci: Produksi bersih, keripik singkong.</em></p><p align="center"><strong> </strong></p><p align="center"><strong>Identification of Cleaner Production Opportunity in Cassava Chips Industry in Supporting Sustainable Manufacturing</strong><strong></strong></p><p><strong> </strong></p><p><strong>ABSTRACT</strong></p><p><em>Cleaner production is one strategy in sustainable manufacturing that can be used to improve environmental performance in cassava chips processing industry. The initial stage in the assessment of cleaner production is the identification of cleaner production opportunities by descriptive analysis methods and the analysis of material and energy balance. Based on the analysis of material and energy balance, the amount of raw material is 3.6 tons of cassava yielded non product output of wash water remaining, 1.5 liter of used cooking oil and 950 kg of cassava peel. Based on the analysis of material and energy balance, there are 5 cleaner production opportunity that is water saving, soap production from used cooking oil, processing of cassava peel to cassava peel flour, cassava peel cracker and liquid sugar. Further research should be done in the form of synthesis to determine the best alternative of several cleaner production opportunities that have been identified.</em></p><p><em>Keywords: Cleaner production, cassava chips, metode Bayes.</em></p>

This study evaluated energy consumption by Agudu Farms Limited (AFL) that processes maize and cassava into flour for human consumption. The objectives of study included to determine energy contribution to processing cost, to minimize the processing cost and to propose a new selling price per unit of sale of the product. The study materials included; a multi-meter, stopwatch, electrical appliances’ nameplates and bills, fuel purchased receipts, and production records. Data was collected through detailed energy audits and measurements of present electricity consumption. This data was converted into energy intensities, rates and costs, and analyzed. The monthly energy intensity plotted on bar charts using Microsoft excel and the results showed that diesel had the highest consumption variation of 3500 kWh/t, electricity 200kWh/t and labor 110 kWh/t. The percentage of energy contribution to processing cost was 33%. In monetary terms, the processing cost per hour of operation showed average value of ₦830. Whereas, the minimum production cost per hour using Tora software showed ₦767. The new product price per ten-kilogram (10kg) unit of sale of maize flour, using break-even analysis, showed ₦2864. The study observed that diesel contributed more to production cost than electricity and labor and therefore, recommended the setting up of an energy monitoring team to monitor procurement and control utilization of diesel to reduce production cost.

Purpose The purpose of this paper is to explain why the high quality cassava flour (HQCF) value chain in Nigeria has not performed as well as expected. The specific objectives are to: analyse important sources of uncertainty influencing HQCF value chains; explore stakeholders’ strategies to respond to uncertainty; and highlight the implications of different adaptation strategies for equity and the environment in the development of the value chain. Design/methodology/approach The authors used a conceptual framework based on complex adaptive systems to analyse the slow development of the value chain for HQCF in Nigeria, with a specific focus on how key stakeholders have adapted to uncertainty. The paper is based on information from secondary sources and grey literature. In particular, the authors have drawn heavily on project documents of the Cassava: Adding Value for Africa project (2008 to present), which is funded by the Bill & Melinda Gates Foundation, and on the authors’ experience with this project. Findings Policy changes; demand and supply of HQCF; availability and price of cassava roots; supply and cost of energy are major sources of uncertainty in the chain. Researchers and government have shaped the chain through technology development and policy initiatives. Farmers adapted by selling cassava to rival chains, while processors adapted by switching to rival cassava products, reducing energy costs and vertical integration. However, with uncertainties in HQCF supply, the milling industry has reserved the right to play. Vertical integration offers millers a potential solution to uncertainty in HQCF supply, but raises questions about social and environmental outcomes in the chain. Research limitations/implications The use of the framework of complex adaptive systems helped to explain the development of the HQCF value chain in Nigeria. The authors identified sources of uncertainty that have been pivotal in restricting value chain development, including changes in policy environment, the demand for and supply of HQCF, the availability and price of cassava roots, and the availability and cost of energy for flour processing. Value chain actors have responded to these uncertainties in different ways. Analysing these responses in terms of adaptation provides useful insights into why the value chain for HQCF in Nigeria has been so slow to develop. Social implications Recent developments suggest that the most effective strategy for the milling industry to reduce uncertainty in the HQCF value chain is through vertical integration, producing their own cassava roots and flour. This raises concerns about equity. Until now, it has been assumed that the development of the value chain for HQCF can combine both growth and equity objectives. The validity of this assumption now seems to be open to question. The extent to which these developments of HQCF value chains can combine economic growth, equity and environmental objectives, as set out in the sustainable development goals, is an open question. Originality/value The originality lies in the analysis of the development of HQCF value chains in Nigeria through the lens of complex adaptive systems, with a particular focus on uncertainty and adaptation. In order to explore adaptation, the authors employ Courtney et al.’s (1997) conceptualization of business strategy under conditions of uncertainty. They argue that organisations can assume three strategic postures in response to uncertainty and three types of actions to implement that strategy. This combination of frameworks provides a fresh means of understanding the importance of uncertainty and different actors’ strategies in the development of value chains in a developing country context.

Changes in eating habits of the individuals have led the food industry to develop products that meet this demand. Banana is a fruit very appreciated in Brazil, but with a high loss rate, due to the absence of instruction among the manipulators. The production of banana flour can reduce these losses, because flour is made with the green fruit, which contains unique compounds with functional properties. Cassava starch cookies is a typical Brazilian food, characterized by its large volume and low weight, thus, the addition of green banana flour to these cookies may be a viable alternative. The objective of this study was to produce cassava starch cookies with substitution of the farinaceous fraction for green banana flour, to evaluate the proximate composition, and to verify the effect of the storage time on the physicochemical, sensory, and microbiological characteristics of the products. Four formulations were made, as follows: a control formulation (A1), and three different formulations containing 4% banana flour (A2), 8% banana flour (A3), and 12% banana flour (A4). The cookies were evaluated for proximate composition and the physicochemical, sensory, and microbiological characteristics in two different periods, corresponding to T1 immediately after manufacture, and T2 after 60 days of storage. All results were analyzed by Tukey's test and ANOVA at 5% probability. Significant differences (p≤0.05) were observed for moisture and protein contents of the products. Regarding the physicochemical parameters, the samples presented significant differences (p≤0.05) for texture, color, and moisture gain, after 60 days of storage. The microbiological quality remained within the limits permitted by the current legislation, demonstrating excellent hygienic-sanitary conditions. Concerning the sensory evaluation, the samples A1 and A2 presented the higher acceptance scores, with no significant differences for the attribute crispness. Therefore, the addition of 4% green banana flour in cassava starch cookies may be a promising alternative of product diversification to attend the consumer demands, once the final product presented few changes in structure and good sensory acceptance. Los cambios en los hábitos alimentarios de los individuos han llevado a la industria alimentaria a desarrollar productos que satisfagan esta demanda. El plátano es una fruta muy apreciada en Brasil, pero con un alto índice de pérdidas, debido a la falta de instrucción de los manipuladores. La producción de harina de plátano puede reducir estas pérdidas, porque la harina se hace con la fruta verde, que contiene compuestos únicos con propiedades funcionales. Las galletas de almidón de yuca son un alimento típico brasileño, caracterizado por su gran volumen y bajo peso, por lo que la adición de harina de plátano verde a estas galletas puede ser una alternativa viable. El objetivo de este estudio fue producir galletas de almidón de yuca con sustitución de la fracción farinácea por harina de plátano verde, evaluar la composición proximal y verificar el efecto del tiempo de almacenamiento en las características fisicoquímicas, sensoriales y microbiológicas de los productos. Se elaboraron cuatro formulaciones, a saber: una formulación de control (A1), y tres formulaciones diferentes que contenían 4% de harina de plátano (A2), 8% de harina de plátano (A3) y 12% de harina de plátano (A4). Se evaluó la composición proximal de las galletas y las características fisicoquímicas, sensoriales y microbiológicas en dos períodos diferentes, correspondientes a T1 inmediatamente después de la fabricación, y T2 después de 60 días de almacenamiento. Todos los resultados se analizaron mediante la prueba de Tukey y ANOVA al 5% de probabilidad. Se observaron diferencias significativas (p≤0,05) para los contenidos de humedad y proteínas de los productos. En cuanto a los parámetros fisicoquímicos, las muestras presentaron diferencias significativas (p≤0,05) para la textura, el color y la ganancia de humedad, tras 60 días de almacenamiento. La calidad microbiológica se mantuvo dentro de los límites permitidos por la legislación vigente, demostrando unas excelentes condiciones higiénico-sanitarias. En cuanto a la evaluación sensorial, las muestras A1 y A2 presentaron las mayores puntuaciones de aceptación, sin diferencias significativas para el atributo crujiente. Por lo tanto, la adición de 4% de harina de plátano verde en las galletas de almidón de yuca puede ser una alternativa prometedora de diversificación de productos para atender las demandas de los consumidores, una vez que el producto final presentó pocos cambios en la estructura y buena aceptación sensorial.

Cassava (Manihot utilissima) is the main raw material of tapioca flour industry. The tapioca industry waste water still contains high enough BOD, COD, and cyanide, above the quality standard of industrial waste water. Photo-Fenton is one of the most effective alternative methods of degrading organic pollutants. This study aims to determine the effect of Photo-Fenton method on the degradation of organic pollutants such as COD and cyanide. For operating conditions of this study use the addition of concentrations of H2O2 and FeSO4.7H2O and different UV light intensity. The analysis of COD concentration using SNI method is spectrophotometric. From the research result, it is found that the concentration of COD and cyanide in tapioca waste can be reduced by using Photo-Fenton method. With initial COD content of 6000 mg/L and cyanide level of 0.67 mg/L. And in the operating conditions of the addition of 5 ml/l of H2O2, Fe2+ 1.25 mg/l, and light intensity of 200 lm, the highest COD and cyanide levels were found to be 900 mg/l for COD and 0.08 mg/l for cyanide. Final levels of COD up to 900 mg/l and cyanide concentrations up to 0.08 mg/l.

As the solid waste produced from cassava processing industry such as tapioca factory or its derivatives, the cassava peel is potential to be use as a source of reducing sugar through hydrolysis process, since the peels contains a high amount of starch and lignocellulose components. The more environmentally friendly enzymatic hydrolysis using several microorganisms will be introduced in this study as an alternative to avoid the unsafe acid hydrolysis. However, the hydrolysis process using a single microorganism is not efficient since the hydrolytic enzyme produced is limited to a single enzyme, while the component in the cassava peels to be hydrolyzed is diverse which include cellulose, lignin, hemicellulose and starch. Therefore, it is necessary to optimize the hydrolysis process by combining several microorganisms (A. niger, T. viride and Acremonium sp. IMI 383068) which produced different specificity of hydrolytic enzyme depending on the substrate available in the cassava peels. The aims of this research were to determine the effect of single and mixed culture on the amount of reducing sugar released during the simultaneous cultivation. The result showed that the use of simultaneous mixed cultures during hydrolysis process was able to produce higher reducing sugar compare to that of single culture. The hydrolysis of cassava flour using a single strain of A. niger, T. viride and Acremonium sp. IMI 383068 respectively produced 4.86 g/L, 4.02 g/L, and 1.68 g/L of reducing sugar, while the hydrolysis of it using simultaneous mixed cultures of A. niger, T. viride, and Acremonium sp. IMI 383068 produced 7.23 g/L of reducing sugar. Keywords: cassava peels, hydrolysis, reducing sugar

<p class="MsoNormal" style="margin: 0cm 13.05pt 6pt 17.85pt; text-align: justify; text-indent: 26.95pt;"><span style="font-size: 10pt;">Food demand can be found dynamic, altering by the change in price and income. How great the influence of those changes to food consumption is the important information as the basic consideration for government in creating policy related to food consumption. The objective of the research, which has survey design, was to analyze staple food consumption and demand pattern in household in Indonesia. The research was conducted in Bogor, from March to June 2008 by using secondary data Susenas year 2005 with 64.709 households as the samples. The staple food analyzed were rice, corn, cassava, sweet potato, wheat flour and its derived product (instant noodle, noodle). Data was processed by SAS program version 6.12 and Double-Log Regression econometrical model. Then, it was analyzed descriptively. </span><span style="font-size: 10pt;">Result shows that rice has the biggest expenditure proportion among staple food. Almost all staple food is obtained by purchasing, except in corn, cassava, and sweet potatoes. Energy contribution from rice reaches half of total energy consumption. The consumption of rice, corn, cassava, sweet potatoes, wheat flour and its derived product, instant noodle, and wheat noodle per capita per year are 100.52 kg, 3.36 kg, 11.67 kg, 4.10 kg, 5.09 kg, 3.39 kg, and 0.22 kg. Staple food which has consumption participation level almost 100% is rice. The own price elasticity of staple foods are not elastic, except in corn, wheat flour and its derived product. The income elasticity of all staple foods is not elastic in all category of region and income stratification. The demand elasticity of staple food give some implications on consumption and food consumption improvement, they are: 1) raising price of staple food can decrease consumption, thus, price stability is very important, 2) almost all staple foods has not elastic income elasticity, so that food consumption improvement needs great stimulus of increasing income, 3) poor household is greatly influenced by the increasing of price, thus, food consumption improvement for them must be conducted by doing many relevant efforts, 4) target of decreasing rice consumption is still cannot be reached, so that staple food diversification must be continuously developed, 5) in order to develop local food consumption, like corn, cassava, and sweet potato, the development of agro industry based on local food and Communication Information Education (CIE) about food consumption diversification are essential to be conducted.</span></p>

Due to the presence of high organic load and hydrocyanic acid, manipueira, the effluent from cassava production, requires appropriate treatment before being discharge into the environment. This study aimed to characterize the manipueira of a flour producing industry and present possible treatment systems for its degradation. The manipueira characterization occurred by the parameters of pH, turbidity, chemical and, biochemical oxygen demand, total solids, total fixed solids, total volatile solids and cyanide. All parameters evaluated were high and above the limits allowed by the legislation, evidencing the need for its treatment. From the survey of biological and physical-chemical treatments s, it is emphasized that the choice of the most appropriate combination will depend mainly on the characteristics of the manipueira generated, the costs and the efficiencies process, and the legal factors.

Bioproductos de la industria de la yuca: sustratos alternativos para la producción de ciclodextrina glucosiltransferasa por alcalófilo Bacillus trypoxylicola SM-02 En el presente trabajo estudiamos el uso licor de maíz fermentado (LMF), harina de cáscara de yuca (HCY) y aguas residuales de yuca para la producción de ciclodextina glicosiltransferasa (CGTase) por un nuevo aislado alcalófilo de Bacillus trypoxylicola SM-02 en fermentación sumergida. Los experimentos se realizaron por Diseño Central Compuesto Rotativo 22 totalizando 11 ensayos. La mayor actividad enzimática de 352.53 U/mL se obtuvo con 1.5 g de HCY y 0.6 g de LMF. La temperatura y el pH óptimos fueron 55 ºC y pH 8.0, respectivamente. CGTase mostró una actividad relativa superior al 50% durante 120 min. a la temperatura óptima. Solo el CaCl2 mostró actividad positiva para CGTasa. Los resultados apuntaron a un buen potencial de B. trypoxylicola SM-02 para la producción de CGTasa usando substratos residuales. In the present work was studied the use of cassava peel flour (CPF), corn steep liquor (CSL), and cassava wastewater as substrates to produce cyclodextrin glycosyltransferase (CGTase) from a new alkalophilic isolate of Bacillus trypoxylicola SM-02 by submerged fermentation. The experiments were performed as a Central Composite Design 22, totalizing 11 assays. An enzymatic activity of 352.53 U/mL was obtained using 1.5 g of CPF and 0.6 g of CSL. The optimum temperature and pH of CGTase was 55 °C and 8.0, respectively. The CGTase depicted a relative activity of more than 50% for 120 min at the optimum temperature. The only salt that positively influenced the CGTase activity was CaCl2. The results are indicative of a potential role of B. trypoxylicola SM-02 in the production of CGTase using residual substrates.

Crackers are made from tapioca flour batter mixed with flavorings and colorings, still many outstanding crackers that contain ingredients banned dye Rhodamine B. Rhodamine B is a chemical used for red dye in the textile industry and plastic. Rhodamine B can cause cancer, poisoning, lung irritation, sore eyes, and sore throat. This study aims to identify and determination the levels of Rhodamine B in circulating red crackers Antasari market Banjarmasin.The population is that sold in the red crackers that sold in Antasari market Banjarmasin.. The sampling is technique incidental sampling , that is based on chance, so any population by chance met with researchers can be used as a sample. Identification of Rhodamine B was done by Thin Layer Chromatography (TLC) by using the stationary phase silica GF 254 and mobile phase is elution solvent is n-butanol, ethyl acetate, ammonia (10:4:5). Then detected with a UV lamp 254 nm and 366 nm. While for the determination of levels using Vis spectrophotometry at a wavelength of 544 nm.The results showed that the samples of 6 found one sample containing Rhodamine B, namely samples 5 (cassava crackers matches) and obtained values of 7,25 ± 3,8640 levels mg / kg. Based on these results, Rhodamine B still found in crackers that sold in the market Antasari Banjarmasin.

Chloride Acid Hydrolysis of Cassava (Manihot esculenta Crantz) Strach Flour in Producing a Liquid Sugar Cassava (Manihot esculenta Crantz), known as cassava or manioc is a tuber or root of a tree that long with a diameter average of 5-10 cm and a length of 50-80 cm, depending on the type of cassava. Cassava is agricultural products that having high potency source of carbohydrates for food and industrial materials. Cassava starch can be made for liquid sugar by the method of acid hydrolysis using hydrochloric acid. The research results showed that rendemen at a HCl concentration of 0.75 N and hydrolysis time of 90 minutes was 80.51%. The higest rendemen of liquid sugar at a concentration of 0.5 N HCl and the hydrolysis time of 90 minutes was 84.22%. Results of the analysis indicate liquid sugar content of 16.22% moisture, ash content of 1.46%, 2.16% protein content, fat content of 0.53%, carbohydrates of 63.90%, and a negative starch content.Key words: Cassava, Flour Cassava Starch, Acid Hydrolysis, Liquid Sugar ABSTRAK Singkong (Manihot esculenta Crantz) yang dikenal sebagai ketela pohon atau ubi kayu merupakan umbi atau akar pohon yang rata-rata berdiameter 5-10 cm dan panjang 50-80 cm, tergantung dari jenis singkong. Singkong merupakan hasil produk pertanian yang potensinya tinggi sebagai sumber karbohidrat untuk bahan pangan dan industri. Pati singkong dapat dibuat gula cair dengan metode hidrolisis asam menggunakan asam klorida. Hasil penelitian menunjukkan bahwa nilai rendemen tertinggi pada konsentrasi HCl 0,75 N dan waktu hidrolisis 90 menit yaitu sebesar 80,51%. Rendemen tertinggi kadar gula pereduksi dari pembuatan gula cair dengan konsentrasi HCl 0,5 N dan waktu hidrolisis 90 menit sebesar 84,22%. Hasil analisa gula cair menunjukkan kandungan kadar air 16,22%, kadar abu 1,46%, kadar protein 2,16%, kadar lemak 0,53% , karbohidrat 63,90%, dan kandungan pati negatif.Kata kunci: Singkong, Tepung Pati Singkong, Hidrolisis Asam, Gula Cair

<p>Singkong varietas manis (Cimanggu) dan pahit (Kaspro) dapat digunakan sebagai bahan baku dalam pembuatan MOCAF. Ekstraksi pati MOCAF dapat dipengaruhi oleh lama fermentasi dan varietas singkong. Tujuan dari penelitian ini adalah mengetahui pengaruh perbedaan lama fermentasi terhadap sifat fungsional pati dari MOCAF dengan dua varietas singkong Kaspro dan Cimanggu. Penelitian ini menggunakan metode Rancangan Acak Kelompok (RAK) dengan faktor tunggal yaitu lama fermentasi (0, 12, 24 jam) dan varietas sebagai kelompoknya (Cimanggu dan Kaspro) dengan 3 kali ulangan. Parameter yang dianalisis yaitu sifat fisik (densitas kamba dan warna), sifat kimia (kadar protein, lemak, abu dan karbohidrat) serta sifat fungsional pati MOCAF (<em>swelling power, solubilitas</em>, daya serap air dan daya serap minyak). Hasil penelitian menunjukkan bahwa lama fermentasi 24 jam dari singkong varietas Kaspro memiliki nilai tertinggi yaitu <em>bulk density </em>0,7505±0,0158 (g/mL), <em>swelling power </em>7,4516±0,1185 (g/g), <em>solubility </em>1,9294±0,2456 (%), <em>water absorption capacity </em>(WAC) 12,0000±1,0000 (mL/g) dan <em>oil absorption capacity </em>(OAC) 17,6667±0,5774 (mL/g), <em>lightness</em> 89,9433±0,1079 dan <em>whitness index </em>85,9113±0,0821 serta kadar protein, lemak, abu dan karbohidrat berturut-turut (0,6094±0,04; 0,3666±0,12; 0,1849±0,03 dan 86,0125±0,42 %). Penggunaan varietas yang berbeda sebagai bahan baku MOCAF, menunjukkan hasil bahwa singkong dengan kadar sianida tinggi juga memiliki pati lebih tinggi (Kaspro), memiliki sifat fungsional (b<em>ulk density, swelling power, solubility</em>, WAC, OAC) yang lebih baik sehingga dapat digunakan untuk keperluan dunia industri yang lebih luas.</p><p> </p><p><strong>Functional Properties of Starch MOCAF (Modified Cassava Flour) from Cassava Variety Kaspro and Cimanggu</strong></p><p>Cassava from sweet (Cimanggu) and bitter (Kaspro) varieties can be used as raw material to produced MOCAF. MOCAF’s starch extraction can be influenced by time of fermentation and variety of cassava. The aim of this research is to determine the effect of time fermentation on the functional properties of MOCAF starch which made from two varieties of cassava (Kaspro and Cimanggu). Randomized Block Design (RAK) with the single factor, time of fermentation (0, 12, 24 hours) and varieties as its group (Cimanggu and Kaspro) with triplicate was used in this research. The physical properties ( bulk density, colour), chemical properties (protein, fat, ash and carbohydrate) and functional properties of MOCAF starch (swelling power, solubility, water absorption capacity and oil absorption capacity) were evaluated. The result showed that Kaspro variety and time of fermentation 24 hour had the highest value of bulk density 0,7505±0,0158 (g/mL), swelling power 7,4516±0,1185 (g/g), solubility 1,9294±0,2456 (%), WAC 12,0000±1,0000 (mL/g) dan OAC 17,6667±0,5774 (mL/g), lightness 89,9433±0,1079, whiteness index 85,9113±0,0821, protein, fat, ash and carbohydrate content respectively 0,6094±0,04; 0,3666±0,12; 0,1849±0,03 and 86,0125±0,42 %. The varieties of cassava with highest cyanide content (Kaspro) also highest in starch content shows that has better functional properties (bulk density, swelling power, solubility, WAC, OAC) so it can be used to widely application for industrial.</p><p><strong><br /></strong></p>

<p class="p1">A review was carried out of the physical and chemical properties of flours and starches made from cassava, yam, ñampi, and sweet potatoes. Amyloseamylopectin content, viscosity, nutritional value and fiber content were studied to associate them with their functional and technical-functional properties. A relationship was found between amylose-amylopectin, viscosity and fiber content and digestibility of those starches, as well as with glycemic index values. </p><p class="p1">It was found that it is possible to introduce modifications through fermentation to enhance the nutritional value of these starches. Fermentation allows the production of gluten-free bread and energy drinks as an option to diversify products. It was also found that there is a relationship between starch viscosity and a reduction of fat absorption in fried foods. </p>

Food is a basic requirement for human beings. As the population increases, food demand will continue to increase. Food problems in Indonesia are inseparable from rice and flour, in addition to other foodstuffs such as cassava, corn, and sago (Colas, 1994). Efforts to increase rice production are not easy, since there is a massive diversion of agricultural land functions into residential and industrial areas. Indonesia has the potential of tubers as a source of carbohydrates as well as raw materials of local flour. One of the sources of local starch that can be used as flour is canna (Canna edulis Ker). The obstacles faced by smallholders/ small and medium industries (SMEs) who use canna flour that is in the post-harvest process to produce canna flour. Making starch/ canna flour generally still done traditionally, thus affecting the productivity and quality of flour produced. This study aims to design a multi-function canna processing machine to produce canna flour as food. The research method used is the engineering method, which is the activity of designing the build canna processing machine. Canna machine has been successfully made with two main functions namely: the solvent and slicer. The main components of the machine consist of: frame, solvent unit, slicer unit, transmission system, output outlet, wheel, and drive motor. Dimensions of the machine that is 90 cm long, 85 cm wide and 100 cm high. While the frame dimension is 80 cm long, 70 cm wide and 65 cm high. Functional test results show that all components work properly. Keywords: canna, canna machine, multifunctional, engine design ABSTRAK Pangan merupakan kebutuhan pokok bagi manusia. Seiring dengan meningkatnya jumlah penduduk, maka kebutuhan pangan akan terus meningkat. Masalah pangan di Indonesia tidak terlepas dari beras dan terigu, disamping bahan pangan lainnya seperti ubi kayu, jagung, dan sagu (Colas, 1994). Upaya untuk meningkatkan produksi beras bukan hal mudah, karena banyak terjadi pengalihan fungsi lahan pertanian secara massal menjadi area pemukiman dan industri. Indonesia memiliki potensi umbi-umbian sebagai sumber karbohidrat sekaligus bahan baku tepung lokal. Salah satu tanaman sumber pati lokal yang dapat dijadikan tepung adalah ganyong (Canna edulis Ker). Kendala yang dihadapi oleh petani atau Industri Kecil Menengah (IKM) yang memanfaatkan tepung ganyong adalah pada proses pasca panen untuk menghasilkan tepung ganyong. Pembuatan pati atau tepung ganyong umumnya masih dikerjakan secara tradisional, sehingga mempengaruhi produktivitas serta kualitas tepung yang dihasilkan. Penelitian ini bertujuan untuk merancang bangun mesin pengolah ganyong multi fungsi sehingga dihasilkan tepung ganyong sebagai bahan pangan. Metode penelitian yang digunakan adalah metode rekayasa, yaitu kegiatan merancang bangun mesin pengolah ganyong. Mesin ganyong telah berhasil dibuat dengan dua fungsi utama, yaitu: pemarut dan pengiris. Komponen utama mesin terdiri dari: rangka, unit pemarut, unit pengiris, sistem transmisi, saluran pengeluaran hasil, roda, dan motor penggerak. Dimensi mesin yaitu panjang 90 cm, lebar 85 cm dan tinggi 100 cm. Sedangkan dimensi rangka, yaitu panjang 80 cm, lebar 70 cm dan tinggi 65 cm. Hasil uji fungsional menunjukkan bahwa semua komponen berfungsi dengan baik. Kata kunci: ganyong, mesin ganyong, multi fungsi, rancang bangun mesin

Abstrak : Tortilla chips adalah salah satu makanan khas dari Mexico yang berbahan dasar tepung. Tortilla chips memiliki karakteristik tipis dan mudah hancur. Bahan baku utama pembuatan tortilla ialah tapioka dan tepung terigu, sedangkan untuk sumber proteinnya digunakan jagung dan kacang-kacangan. Beberapa macam proses disusun berdasarkan geografis dan sosial ekonomi salah satu contohnya adalah kosentrasi larutan kapur, jenis jagung, lama pemasakan dan temperatur. Wortel jenis sayuran yang menyehatkan untuk tubuh manusia. Wortel mengandung senyawa β-karoten yang dapat menimbulkan kekebalan terhadap penyakit. Pati jagung dapat dikembangkan menjadi produk-produk olahan bagi industri yang menghasilkan tepung meizena, desktrin dan gula jagung. Meizena yang bermutu baik patinya tidak bauk, tidak apek, rasa normal pati, warna putih normal, tidak terdapat benda asing dan potongan serangga dan jenis pati yang lain selain jagung. Mocaf ialah produk tepung dari singkong (Manihot utilisima) yang dihasilkan dari proses fermentasi asam laktat. Penerimaan konsumen terhadap tortilla chips akan diukur menggunakan uji sensoris hedonik yang terdiri dari 4 uji atribut yaitu warna, aroma, rasa dan tekstur. Penelitian ini menggunakan Rancangan Acak lengkap (RAL) dengan faktorial yang terdiri dari dua faktor, yaitu : faktor pertama yaitu perbandingan bubur jagung (B) dengan ampas wortel (A) yang terdiri 3 taraf (P) yaitu: 70:30 %, 75:25 %, 80:20 %. Dan faktor kedua yaitu jenis tepung yang digunakan yang terdiri dari tepung mocaf 100% dan meizena 100%.Abstract : Tortilla chips are one of the typical Mexican foods made from flour. Tortilla chips have thin and crumbly characteristics. The main raw materials for making tortillas are tapioca and wheat flour, while corn and beans are used for their protein sources. Several types of processes are arranged geographically and socio-economically. One example is the concentration of slaked lime, the type of corn, the length of cooking time temperature. Carrots are healthy for the human body. Carrots contain β-carotene compounds that good for bodies immunity. Corn starch can be developed into processed products for industries that produce maizene flour, desktrine and corn sugar. Maizena which is of good quality is not stale, not musty, have normal taste of starch, have normal white color, there are no foreign objects and pieces of insects and other types of starch besides corn. Mocaf is a flour product from cassava (Manihot Utilisima) which is produced from lactic acid fermentation. Consumer acceptance of tortilla chips will be measured using a hedonic sensory test consisting of 4 attribute tests, color, aroma, taste and texture. This study uses a completely randomized design (CRD) with factorial consisting of two factors: the first variabel is the ratio of grits (B) with carrot pulp (A) which consists of 3 levels (P): 70:30%, 75: 25%, 80:20%. And the second variabel is the type of flour used which consists of 100% mocaf flour and 100% meizena.

<p>Many technology research institutes and university research and development can not be<br />applied by the user community and industry. The result is less a role in improving the welfare of<br />society. Required critical reviews of technology and innovation management strategies to<br />generate technologies relevant to the needs of society and industry. The study was conducted by<br />taking the case of the cassava starch fermentation industry. The purpose of this study is (a)<br />acquired technology strategy to improve the quality of fermented cassava flour, added value,<br />competitiveness, and usability, as well as (b) obtained by way of management or management of<br />technological innovation that fermented cassava flour can be applied to the industry, providing<br />benefits , benefits and further foster innovation. Technology strategy fermented cassava flour<br />industry in the form of: (1) the development of cassava starch fermentation, (2) development of<br />product diversity flour as necessary to market the composite flour technology, (3) flour over the<br />dough expands when made, (4) development of a product of high nutritional value with<br />fortification technology, (5) the development of a more rapid fermentation technology, (6) the<br />development of fermented cassava flour production technology zero waste. Management or<br />management of innovation is done by: (a) search technology required product market (easy,<br />cheap, fast), (b) selecting appropriate technology industry capacity, (c) development of<br />technology that can be controlled, (d) select technology products required penndek term and long<br />term. Innovation management needs to be done properly so that the resulting innovation can<br />diindustrikan, generate benefits, maximum and sustainable benefits. Management of innovation<br />that will either encourage the birth of new innovations that can applied in industry and provide<br />greater benefits.</p>

Tulisan ini bertujuan untuk mengemukakan upaya diversifikasi pangan ubi ungu mulai dari proses produksi tepung ubi ungu dari proses persiapan bahan baku, proses pembutan tepung ubi ungu, penanganan produk akhir meliputi pengemasan, penyimpanan, analisis usaha dan pemasaran, kondisi sarana dan prasarana yang digunakan. Kegiatan dilaksanakan di Industri Rumah Tangga UKM Griya Ketelaqu di Kelurahan Plalangan Kecamatan Gunungpati Kota Semarang. Metode yang penelitian yang digunakan adalah deskriptif eksploratif dengan melakukan observasi secara langsung, interview (wawancara) dan studi pustaka yang berkaitan dengan tepung ubi ungu. Hasil penelitian menyimpulkan bahwa UKM Griya Ketelaqu memiliki kemampuan mengolah ubi ungu menjadi produk tepung ubi ungu. Selain olahan tepung ubi ungu UKM Griya Ketelaqu juga mengolah berbagai macam jenis tepung-tepungan seperti tepung umbi-umbian, tepung sayur-sayuran, tepung buah-buahan serta mengolah olahan dari ubi lainnya seperti timus, nugget, peyek tumpi dan singkong keju. Dalam setiap produksi UKM Griya Ketelaqu membutuhkan rata-rata 50 kg ubi ungu dan menghasilkan tepung ubi ungu 20 kg. Dengan demikian nilai rendemen tepung ubi ungu sebesar 40%. Keuntungan per bulan dari usaha produksi tepung ubi ungu oleh UKM Griya Ketelaqu adalah Rp. 905.000,- perbulan.. Tepung Ubi Ungu dapat menjadi alternatif diversifikasi pangan karena memiliki kemampuan menghasilkan beberapa produk pangan yang disukai oleh masyarakatKata Kunci: ubi ungu, diversifikasi, tepung, usaha kecil menengahAbstractThis paper aims to highlight the effort of purple sweet potatoes flour diversification beginning from the process of producing sweet potatoes flour from the preparation of raw material, the process of making sweet potatoes flour, the handling of the final product including packaging, storage, business analysis and marketing, the condition of the facilities and infrastructure used. The activity was carried out at the UKM (Small Medium Enterprise) Griya Ketelaqu Home Industry in Plalangan Village, Gunungpati District, Semarang. The method used is descriptive exploratory research by direct observation, interviews with the owner and literature studies relating to purple sweet potato flour. The results of the study concluded that UKM Griya Ketelaqu had the ability to process purple sweet potatoes into purple sweet potato flour products. In addition to processed purple sweet potatoes flour UKM Griya Ketelaqu also processes various types of flour such as tuber flour, vegetable flour, fruit flour as well as processing processed from other sweet potatoes such as timus, nuggets, tofu and cassava cheese. Thus the yield of purple sweet potato flour by 40%. The profit per month from the purple sweet potato flour production business by Griya Ketelaqu UKM is Rp.605,000 per month. Purple sweet poatoes flour can be an alternative food diversification because it has the ability to produce some food products that are preferred by the community.Keywords: purple sweet potatoes, diversified, flour, small and medium enterprise

Food processing in commercial industry generally aims to extend shelf life, change or increase products’ characteristics (color, flavor, texture), ease treatment and distribution, increase economic value, and maintain or improve quality, particularly nutritional quality, digestibility, and nutritional value. The objective of this research is to determine the shelf life of products made from cassava flour which is fortified by red bean flour, and to understand whether there is a decrease in nutritional value during the storage period, as well as to calculate the Recommended Dietary Allowances (RDA). The Recommended Dietary Allowances of Cassava Flakes with Red Bean Flour for breakfast has a very important function. For instance, children who are in school need plenty of energy to start their activities and stay focused at school. Breakfast food needs to fulfill the 20-25% of the RDA for children, who need a total of 2,000 kilo calories per day. An alternative option for breakfast is nutritious flakes that can be consumed with a quick preparation time. The method to determine the shelf life is carried out using the Accelerated Self Life Testing (ASLT) and critical water activity methods, whereas to determine the proximate nutritional value we used the gravimetric method to determine the ash content and water content. In addition, we used the Kjehdahl method to determine the protein content, the sokhlet method for the fat content, and by difference method for the carbohydrate content. The result obtained for the nutritional value throughout the storage period is that the nutritional value of the flakes decreased after being stored for 10 weeks. The result of determining the shelf life using a critical water activity method is 307.5 days of storage. RDA or the Recommended Dietary Allowance is the percentage of the amount of a nutrient contained in the food consumed based on the daily needs of the healthy person. Generally this daily requirement is based on daily caloric requirement of 2000 kcal, but some also use base 2500 kcal. RDA's guidance in Indonesia can follow the guidance given by POM RI based on Decree of the Head of POM RI No. HK.00.05.52.6291 on Food Label Nutritional Reference.

Aims: Starch is used in the food industry to impart functional properties and to modify food texture and consistency. In this study starches isolated from six sources using an alkali extraction method were evaluated for physicochemical properties. Study Design: Complete randomized design. Place and Duration of Study: Department of Food Science and Technology, Faculty of Livestock, Fisheries, & Nutrition, Wayamba University of Sri Lanka, Makandura, Gonawila (NWP), Sri Lanka between April 2017 and August 2017. Methodology: Starches were isolated from white rice, foxtail millet, proso millet, cassava, sweet potato and all-purpose wheat flour. Proximate composition, mineral content, physical properties and microscopic characteristics were determined and they were compared. Results: The level of starch extracted was within the range of 27.5-64.1% on a dry basis. Extracted starched contains about 99% carbohydrate in DW and less than 1% non-carbohydrate fraction (protein, fat, fiber and ash and minerals). The amylose content followed the order: proso millet > wheat > foxtail millet > rice > sweet potato > cassava. There was considerable variation in swelling factor, solubility, gelatinization temperature among all starches. Both swelling power and solubility had a positive relationship with temperature and the swelling power (at 90°C) followed the order: corn > cassava > foxtail millet > wheat > proso millet > rice > sweet potato. The gelatinization temperature of starches ranged from 62°C to 76°C. Conclusion: The study would be helpful to better understand the chemical, physical and microscopic characteristics of these starches and the application of novel starches obtain from non-conventional sources which are foxtail millet, proso millet and sweet potato as a thickening agent and a substitute to other common starches in food.

Based on the potential of region in Indonesia, each region has a potential flagship industries. Oyster mushroom as one of them of potential in Karanganyar. There is potential that could be developed into an industry so that it is able to improve the welfare of society. In an effort to become Oyster Mushrooms cultivation industry flagship Karanganyar required factor conditions, demand conditions, related and supporting industries, and firm strategy, structure and rivalry so that the oyster mushroom industry be the industry is able to compete.This research is a case study of cultivation of mushrooms, which are descriptive. The object of this research is on the oyster mushroom cultivation in the village of Ngijo, Karanganyar Regency as well as the development of innovative product petrol. The reason for this is because object uses this business originated from trying later evolved and been running 3 (three) years but wanted to create a product variant, so that businessmen need to consider the feasibility of its business worth developed or not.Based on the analysis of the industrial development efforts of oyster mushroom oyster mushroom chips into products quite feasible and innovative as well as provide significant advantages. Practical Implications: Product innovation to make oyster mushrooms that are expected to be received by consumers is the addition of cassava flour white (20%) as to the characteristics of coatings, moisture (1.625%), grey levels (1.622%), levels of protein (16,598%), fat (5,172%), and a score sensory analysis (1,87), yellowish color ( (3,07 fungi), crisp (4,13) and enjoyment the whole 3,80 (like).The research strategy is the done to increase competitiveness and in the development of potential for peoples welfare (study oyster mushroom industry, Karanganyar, Central Java, Indonesia), as applied research and was conducted in object was first.

Abstract By seeding fungus on top of industry residues, a mycelium can grow and form a compact network structure; however, it may not develop due to lack of optimal nutrients from the substrate. Consequently, peach-palm residues can be a potential alternative; so, to test this hypothesis, this work evaluates the effect of peach-palm residues as substrate for the growth of mycelium based on Lentinula edodes. They were also supplemented with cassava bran and various sources of nitrogen-ammonium sulphate, potassium nitrate, and soy flour—to analyse its effects on its physico-chemical, enzymatic activities, and thermal and mechanical properties of the final composite at 12 and 20 days of cultivation. This mycelium was able to grow at optimum source treatment conditions, which depends on the ratio of Carbon to Nitrogen, within only 12 days of inoculation. Furthermore, the enzyme activities directly correlate with the mycelium growth with optimum conditions of pH, water activity, and moisture for L. edodes to grow having lower enzyme activities for a well-developed composite; whereas higher activities were seen for a weakly developed material, and this material demonstrates mechanical and thermal properties similar to common mycelium-based composites. Therefore, this work demonstrates that peach-palm residues can be a potential alternative for mycelium-based composite.

The residue from anaerobic digestion of paper mill biological sludge has the potency to be used as organic fertilizer. Physically, organic fertilizer in pellet form has smaller volume and easily stored and transported. The aim of this study is to obtain the appropriate adhesive to make fertilizer pellets from the residue from anaerobic digestion of paper mill biological sludge. The experiment were performed with two variable treatments which are the types of adhesive (sago flour, cassava starch, molasses) and the adhesive doses (0.5%, 1.0%, and 1.5%) with respectively 3 replications. The physical properties of resulting pellets were tested including yield, density, water holding capacity, and durability. The effect of pellets on plant germination and growth was also done using tomato seed. The results explained that generally, the pellets meet minimum requirements of organic fertilizers and soil conditioner according to Indonesian National Standard (SNI 7847:2012) unless Zn as micro nutrient and Regulation of the Minister of Agriculture Number 70/2011 unless water content. The pelletization of organic fertilizer to the size of 3-5 mm can be done by adding the best adhesive material, namely cassava starch 1% with the physical properties of the pellets including a yield of 99.56%, density of 1.84 g/mL, water holding capacity of 65.53%, and durability of 99.65-99.84%, but organic fertilizer pellets (with sago flour as adhesive) at a dose of 0.5 g/50 g media is the best for tomato germination and growth.Keywords: anaerobic digestion residue, organic fertilizer pellet, molasses, cassava starch, sago flourABSTRAKResidu proses digestasi anaerobik lumpur biologi industri kertas berpotensi dimanfaatkan sebagai pupuk organik. Secara fisik, pupuk organik dalam bentuk pelet lebih kecil volumenya dan lebih mudah disimpan dan diangkut. Tujuan penelitian ini adalah untuk memperoleh bahan perekat yang sesuai untuk membuat pelet pupuk organik dari residu proses digestasi anaerobik lumpur biologi industri kertas. Percobaan dilakukan dengan 2 variabel perlakuan, yaitu jenis perekat (tepung sagu, tepung kanji, molase) dan dosis perekat (0,5%; 1,0%; dan 1,5%) dengan masing-masing 3 replikasi. Pelet yang dihasilkan diuji sifat fisiknya meliputi yield, densitas, water holding capacity dan durabilitas. Percobaan pengaruh pelet berperekat terhadap perkecambahan dan pertumbuhan biji tanaman tomat juga dilakukan. Hasil penelitian menjelaskan bahwa secara umum, pelet memenuhi persyaratan minimal pupuk organik dan pembenah tanah sesuai SNI 7847:2012 kecuali Zn sebagai unsur hara mikro dan PERMENTAN No. 70 tahun 2011 kecuali kadar air. Pembuatan pelet pupuk organik dengan ukuran 3–5 mm dapat dilakukan dengan menambahkan bahan perekat terbaik, yaitu tepung kanji 1% dengan sifat fisik : yield 99,56%, densitas 1,84 g/mL, water holding capacity 65,53% dan durabilitas 99,65-99,84%, namun penggunaan pelet pupuk organik (berperekat tepung sagu) 0,5 g/50 g media untuk perkecambahan dan pertumbuhan biji tanaman tomat merupakan yang terbaik.Kata kunci: residu digestasi anaerobik, pelet pupuk organik, molase, tepung kanji, tepung sagu

Salah satu permasalahan dalam rangka diversifikasi pangan pokok adalah kebiasaan masyarakat mengkonsumsi beras. Pengembangan beras tiruan dari bahan-bahan lokal seperti: jagung, singkong dan pati sagu belum dikembangkan secara komersial karena rumitnya proses pengolahan. Pemasakan ekstrusi merupakan suatu metode yang dapat menyederhanakan proses pengadukkan, pencetakan dan pemasakan menjadi satu tahapan proses. Untuk dapat diaplikasikan pada industri kecil di negara berkembang perlu dikembangkan ekstruder mesin kecil sederhana.Tujuan dari penelitian ini adalah pengembangan ekstruder mesin kecil sederhana untuk pembuatan beras tiruan yang memiliki kualitas yang baik serta dapat memberikan margin keuntungan yang memadai bagi industri kecil. Penelitian disusun menjadi beberapa tahapan yaitu: (1) Mendesain ulir dan die ekstruder; (2) Menguji performa ekstruder dengan penyesuaian kecepatan bahan masuk, kecepatan putar ulir serta suhu pemasakan; (3) Mengevaluasi karakter produk yang dihasilkan dari segi mutu dan penerimaan konsumen; (4) Melakukan studi kelayakan ekonomi.Hasil penelitian yang diperoleh dari tahun pertama adalah produksi ulir dan ekstruder teroptimalisasi dengan single screw bersudut 7,5 derajat yang memghasilkan tekanan aliran fluida sebesar 1,2038339 x 10 pangkat 17 Pa, kecepatan ulir 450 rpm dengan teknik cold extrusion yang mampu menghasilkan beras tiruan optimal dengan penggunaan formulasi bahan baku 30% tepung jagung dan 70% tepung mocaf yang menghasilkan pengukuran warna dengan nilai L 76,26, a+5,35 dan b+31,39, kadar protein 9,73%; kadar serat 5%; kadar air 9%; kadar abu 0,52%; kadar lemak 1,12%; dan densitas kamba 0,58 g/ml. Bakteri yang digunakan untuk Biologically Modified Cassava Flour adalah bakteri hasil pengembangan dari tim peneliti dengan strain baru L. plantarum polije 15420. Baik rancangan desain ulir, formulasi serta metode pembuatan beras tiruan maupun bakteri telah diajukan untuk proses drafting paten.

I have only ever owned one pig. It didn’t have a name, due as it was for the table. Just pu‘aka. But I liked feeding it; nothing from the household was wasted. I planned not to become attached. We were having a feast and a pig was the one essential requirement. The piglet came to us as a small creature with a curly tail. It would not even live an adult life, as the fully-grown local pig is a fatty beast with little meat. Pigs are mostly killed when partly grown, when the meat/fat ratio is at its optimum. The pig was one of the few animals to accompany Polynesians as they made the slow journey across the islands and oceans from Asia: pigs and chickens and dogs. The DNA of island pigs reveals details about the route taken that were previously hidden (Larsen et al.). Of these three animals, pigs assumed the most ceremonial importance. In Tonga, pigs often live an exalted life. They roam freely, finding food where they can. They wallow. Wherever there is a pool of mud, often alongside a road, there is a pig wallowing. Huge beasts emerge from their pools with dark mud lining their bellies as they waddle off, teats swinging, to another pleasure. Pig snouts are extraordinarily strong; with the strength of a pig behind them, they can dig holes, uproot crops, and generally wreak havoc. How many times have I chased them from my garden, despairing at the loss of precious vegetables I could get no other way? But they must forage. They are fed scraps, and coconut for protein, but often must fend for themselves. Despite the fact that many meet an early death, their lives seem so much more interesting than those lived by the anonymous residents of intensive piggeries in Australia, my homeland. When the time came for the pig to be sacrificed to the demands of the feast, two young Tongan men did the honours. They also cooked the pig on an open fire after skewering it on a pole. Their reward was the roasted sweetmeats. The ‘umu was filled with taro and cassava, yam and sweet potato, along with lū pulu and lū ika: tinned beef and fish cooked in taro leaves and coconut cream. In the first sitting, all those of high status—church ministers, college teachers, important villagers and pālangi like me—had the first pick of the food. Students from the college and lowly locals had the second. The few young men who remained knew it was their task to finish off all of the food. They set about this activity with intense dedication, paying particular attention to the carcass of the pig. By the end of the night, what was left of our little pig was a pile of bones, the skeleton taken apart at every joint. Not a scrap of anything edible remained. In the early 1980s, I went to live on a small island in the Kingdom of Tonga, where my partner was the Principal of an agricultural college, in the main training young men for working small hereditary mixed farms. Memories of that time and a recent visit inform this reflection on the contemporary Tongan diet and problems associated with it. The role of food in a culture is never a neutral issue. Neither is body size, and Tongans have traditionally favoured the large body as an indication of status (Pollock 58). Similarly the capacity to eat has been seen as positive. Many Tongans are larger than is healthy, with 84% of men and 93% of women “considered overweight or obese” (Kirk et al. 36). The rate of diabetes, 80% of it undiagnosed, has doubled since the 1970s to 15% of the adult population (Colagiuri et al. 1378). In the Tongan diaspora there are also high rates of so-called “metabolic syndrome,” leading to this tendency to diabetes and cardiovascular disease. In Auckland, for instance, Pacific Islanders are 2.5 times more likely to suffer from this condition (Gentles et al.). Its chief cause is not, however, genetic, but comes from “differences in obesity,” leading to a much higher incidence of cardiovascular disease and diabetes (Gentles et al.). Deaths from diabetes in Tonga are common. When a minister’s wife in the neighbouring village to mine died, everyone of status on the island attended the putu. Though her gangrenous foot could have been amputated, the family decided against this, and she soon died from the complications of her diabetes. On arrival at the putu, as well as offering gifts such as mats and tapa, participants lined up to pay very personal respects to the dead woman. This took the form of a kiss on her face. I had never touched a dead person before, let alone someone who had died of gangrene, but life in another culture requires many firsts. I bent down and kissed the dry, cold face of a woman who had suffered much before dying. Young men of the family pushed sand over the grave with their own hands as the rest of us stood around, waiting for the funeral food: pigs, yes, but also sweets made from flour and refined sugar. Diet and eating practices are informed by culture, but so are understandings of illness and its management. In a study conducted in New Zealand, sharp differences were seen between the Tongan diaspora and European patients with diabetes. Tongans were more likely “to perceive their diabetes as acute and cyclical in nature, uncontrollable, and caused by factors such as God’s will, pollution in the environment, and poor medical care in the past”, and this was associated “with poorer adherence to diet and medication taking” (Barnes et al. 1). This suggests that as well as being more likely to suffer from illnesses associated with diet and body size, Tongans may also be less likely to manage them, causing these diseases to be even more debilitating. When James Cook visited the Tongan group and naively named them the Friendly Islands, he was given the customary hospitality shown to one of obviously high status. He and his officers were fed regularly by their hosts, even though this must have put enormous pressure on the local food systems, in which later supply was often guaranteed by the imposition of tapu in order to preserve crops and animals. Further pressure was added by exchanges of hogs for nails (Beaglehole). Of course, while they were feeding him royally and entertaining his crew with wrestling matches and dances, the local chiefs of Ha‘apai were arguing about exactly when they were going to kill him. If it were by night, it would be hard to take the two ships. By day, it might be too obvious. They never could agree, and so he sailed off to meet his fate elsewhere (Martin 279-80). As a visitor of status, he was regularly fed pork, unlike most of the locals. Even now, in contemporary Tonga, pigs are killed to mark a special event, and are not eaten as everyday food by most people. That is one of the few things about the Tongan diet that has not changed since the Cook visits. Pigs are usually eaten on formal feasting occasions, such as after church on the Sabbath (which is rigorously kept by law), at weddings, funerals, state occasions or church conferences. During such conferences, village congregations compete with each other to provide the most lavish spreads, with feasting occurring three times a day for a week or more. Though each pola is spread with a range of local root crops, fish and seafood, and possibly beef or even horse, the pola is not complete unless there is at least one pig on it. Pigs are not commercially farmed in Tonga, so these pigs have been hand- and self-raised in and around villages, and are in short supply after these events. And, although feasts are a visible sign of tradition, they are the exception. Tongans are not suffering from metabolic syndrome because they consume too much pork; they are suffering because in everyday life traditional foods have been supplanted by imports. While a range of traditional foods is still eaten, they are not always the first choice. Some imported foods have become delicacies. Mutton flap is a case in point. Known as sipi (sheep), it is mostly fat and bone, and even when barbequed it retains most of its fat. It is even found on outer islands without refrigeration, because it can be transported frozen and eaten when it arrives, thawed. I remember once the local shopkeeper said she had something I might like. A leg of lamb was produced from under the counter, mistakenly packed in the flap box. The cut was so unfamiliar that nobody else had much use for it. The question of why it is possible to get sipi in Tonga and very difficult to get any other kind of fresh meat other than one’s own pigs or chickens raises the question of how Tonga’s big neighbours think of Pacific islands. Such islands are the recipients of Australian and New Zealand aid; they are also the recipients of their waste. It’s not uncommon to find out of date medications, banned agricultural chemicals, and food that is really unsuitable for human consumption. Often the only fresh and affordable meat is turkey tails, chicken backs, and mutton flap. From July 2006 to July 2007, New Zealand exported $73 million worth of sheep off-cuts to the Pacific (Edwardes & Frizelle). Australia and the US account for the supply of turkey tails. Not only are these products some of the few fresh meat sources available, they are also relatively inexpensive (Rosen et al.). These foods are so detrimental to the health of locals that importing them has been banned in Fiji and independent Samoa (Edwardes & Frizelle). The big nations around the Pacific have found a market for the meat by-products their own citizens will not eat. Local food sources have also been supplanted as a result of the high value placed on other foods, like rice, flour and sugar, which from the nineteenth century became associated with “civilisation and progress” (Pollock 233). To counter this, education programs have been undertaken in Tonga and elsewhere in the Pacific in order to promote traditional local foods. These have also sought to address the impact of high food imports on the trade balance (Pollock 232). Food choices are not just determined by preference, but also by cost and availability. Similarly, the Tonga Healthy Weight Loss Program ran during the late 1990s, but it was found that a lack of “availability of healthy low-cost food was a problem” to its success (Englberger et al. 147). In a recent study of Tongan food preferences, it was found that “in general, Tongans prefer healthier traditional, indigenously produced, foods”, but that they are not always available (Evans et al. 170). In the absence of a consistent supply of local protein sources, the often inferior but available imported sources become the default ingredient. Fish in particular are in short supply. Though many Tongans can still be seen harvesting the reef for seafood at low tide, there is no extensive fishing industry capable of providing for the population at large. Intensive farming of pigs has been considered—there was a model piggery on the college where I lived, complete with facilities for methane collection—but it has not been undertaken. Given the strongly ceremonial function of the pig, it would take a large shift in thinking for it to be considered an everyday food. The first cooked pig I encountered arrived at my house in a woven coconut leaf basket, surrounded by baked taro and yam. It was a small pig, given by a family too poor to hold the feast usually provided after church when it was their turn. Instead, they gave the food portion owed directly to the preacher. There’s a faded photo of me squatting on a cracked linoleum floor, examining the contents of the basket, and wondering what on earth I’m going to do with them. I soon learnt the first lesson of island life: food must be shared. With no refrigeration, no family of strapping youths, and no plans to eat the pig myself, it had to be given away to neighbours. It was that simple. Even watermelon went off within the day. In terms of eating, that small pig would have been better kept until a later day, when it reached optimum size, but each family’s obligation came around regularly, and had to be fulfilled. Feasting, and providing for feasting, was a duty, even a fatongia mamafa: a “heavy duty” among many duties, in which the pig was an object deeply “entangled” in all social relations (Thomas). A small pig was big enough to carry the weight of such obligations, even if it could not feed a crowd. Growing numbers of tourists to Tonga, often ignored benignly by their hosts, are keen to snap photos of grazing pigs. It is unusual enough for westerners to see pigs freely wandering, but what is more striking about some pigs on Tongatapu and ‘Eua is that they venture onto the reefs and mudflats at low tide, going after the rich marine pickings, just as their human counterparts do. The silhouette of a pig in the water as the tropical sun sinks behind, caught in a digital frame, it is a striking memory of a holiday in a place that remains largely uninterested in its tourist potential. While an influx of guests is seen by development consultants as the path to the nation’s economic future, Tongans bemusedly refuse to take this possibility seriously (Menzies). Despite a negative trade balance, partly caused by the importation of foreign food, Tonga survives on a combination of subsistence farming and remittances from Tongans living overseas; the tourist potential is largely unrealised. Dirk Spennemann’s work took a strange turn when, as an archaeologist working in Tonga, it became necessary for him to investigate whether these reef-grazing pigs were disturbing midden contents on Tongatapu. In order to establish this, he collected bags of both wet and dry “pig excreta” (107). Spenemann’s methodology involved soaking the contents of these bags for 48 hours, stirring them frequently; “they dissolved, producing considerable smell” (107). Spennemann concluded that pigs do appear to have been eating fish and shellfish, along with grass and “the occasional bit of paper” (107). They also feed on “seaweed and seagrass” (108). I wonder if these food groups have any noticeable impact on the taste of their flesh? Creatures fed particular diets in order to create a certain distinct taste are part of the culinary traditions of the world. The deli around the corner from where I live sells such gourmet items as part of its lunch fare: Saltbush lamb baguettes are one of their favourites. In the Orkneys, the rare and ancient North Ronaldsay Sheep are kept from inland foraging for most of the year by a high stone fence in order to conserve the grass for lambing time. This forces them to eat seaweed on the beach, producing a distinct marine taste, one that is highly valued in certain Parisian restaurants. As an economy largely cut out of the world economic loop, Tonga is unlikely to find select menus on which its reef pigs might appear. While living on ‘Eua, I regularly took a three hour ferry trip to Tongatapu in order to buy food I could not get on my home island. One of these items was wholemeal flour, from which I baked bread in a mud oven we had built outside. Bread was available on ‘Eua, but it was white, light and transported loose in the back of truck. I chose to make my own. The ferry trip usually involved a very rough crossing, though on calmer days, roof passengers would cook sipi on the diesel chimney, added flavour guaranteed. It usually only took about thirty minutes on the way out from Nafanua Harbour before the big waves struck. I could endure them for a while, but soon the waves, combined with a heavy smell of diesel, would have me heading for the rail. On one journey, I tried to hold off seasickness by focussing on an island off shore from Tongatapu. I went onto the front deck of the ferry and faced the full blast of the wind. With waves and wind, it was difficult to stand. I diligently stared at the island, which only occasionally disappeared beneath the swell, but I soon knew that this trip would be like the others; I’d be leaning over the rail as the ocean came up to meet me, not really caring if I went over. I could not bear to share the experience, so in many ways being alone on the foredeck was ideal for me, if I had to be on the boat at all. At least I thought I was alone, but I soon heard a grunt, and looked across to see an enormous sow, trotters tied front and back, lying across the opposite side of the boat. And like me, she too was succumbing to her nausea. Despite the almost complete self-absorption seasickness brings, we looked at each other. I may have imagined an acknowledgement, but I think not. While the status of pigs in Tongan life remains important, in many respects the imposition of European institutions and the availability of imported foods have had an enormous impact on the rest of the Tongan diet, with devastating effects on the health of Tongans. Instead of the customary two slow-cooked meals, one before noon and one in the evening (Pollock 56), consisting mostly of roots crops, plantains and breadfruit, with a relish of meat or fish, most Tongans eat three meals a day in order to fit in with school and work schedules. In current Tongan life, there is no time for an ‘umu every day; instead, quick and often cheaper imported foods are consumed, though local foods can also be cooked relatively quickly. While some still start the day by grabbing a piece of left over cassava, many more would sit down to the ubiquitous Pacific breakfast food: crackers, topped with a slab of butter. Food is a neo-colonial issue. If larger nations stopped dumping unwanted and nutritionally poor food products, health outcomes might improve. Similarly, the Tongan government could tip the food choice balance by actively supporting a local and traditional food supply in order to make it as cheap and accessible as the imported foods that are doing such harm to the health of Tongans References Barnes, Lucy, Rona Moss-Morris, and Mele Kaufusi. “Illness Beliefs and Adherence in Diabetes Mellitus: A Comparison between Tongan and European Patients.” The New Zealand Medical Journal 117.1188 (2004): 1-9. Beaglehole, J.C. Ed. The Journals of Captain James Cook on his Voyages of Discovery: The Voyage of the Resolution and Discovery 1776-1780. Parts I & II. Cambridge: Hakluyt Society, 1967. ­­­____. Ed. 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McGarvey. “Overweight and Diabetes in American Samoa: The Cultural Translation of Research into Health Care Practice.” Medicine and Health/ Rhode Island 91.12 (2008): 372-78. Spennemann, Dirk H.R. “On the Diet of Pigs Foraging on the Mud Flats of Tongatapu: An Investigation in Taphonomy.” Archaeology in New Zealand 37.2 (1994): 104-10. Thomas, Nicholas. Entangled Objects: Exchange, Material Objects and Colonialism in the Pacific. Cambridge, Massachusetts: Harvard UP, 1991.