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Relevant bibliographies by topics / Palm oils

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Academic literature on the topic 'Palm oils'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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Journal articles on the topic "Palm oils"

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ISHIKAWA, Hidetoshi, Makoto SHIOTA, Mototake MURAKAMI, and Ichiro NAKAJIMA. "Polymorphic Behavior of Palm Oil and Modified Palm Oils." Food Science and Technology International, Tokyo 3, no. 1 (1997): 77–81. http://dx.doi.org/10.3136/fsti9596t9798.3.77.

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Yap, Peck Hong, J. M. Deman, and L. Deman. "Crystallization Rates of Palm Oil and Modified Palm Oils." Fett Wissenschaft Technologie/Fat Science Technology 91, no. 5 (1989): 178–80. http://dx.doi.org/10.1002/lipi.19890910503.

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Mori, Hiroyuki, and Takashi Kaneda. "Food Uses of Palm Oil in Japan." Food and Nutrition Bulletin 15, no. 2 (1994): 1–4. http://dx.doi.org/10.1177/156482659401500214.

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Palm oil has many advantageous properties that make it well suited for manufacturing and processing food products in Japan. Its principal uses are in making margarine and shortening, and for deep frying instant noodles, tempura, and snack foods. Palm oil now enjoys a 22% share of all oils and fats used in preparing these foods. In addition, palm oil fractions such as palm olein, palm stearin, and palm midfraction are used increasingly in a variety of other food products, ranging from vegetable ghee and hard butter to chocolate and ice cream. According to official statistics, palm oil consumption in Japan has now increased to around 320,000 tons per year, and the indications are that its use in the food industry will continue to increase despite the fact that liquid oils remain the major oils in domestic cooking.

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Tari, Ali Rafiei, Ali Asghar Sadeghi, and Seyed Naser Mousavi. "Dietary vegetable oils inclusion on the performance, hormonal levels and hsp 70 gene expression in broilers under heat stress." Acta Scientiarum. Animal Sciences 42 (September 30, 2019): e45517. http://dx.doi.org/10.4025/actascianimsci.v42i1.45517.

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The aim of the present study was to compare the effects of unsaturated and saturated oils on the performance, hormonal levels and hsp gene expression in broiler chickens exposed to heat stress. 300 one-day male broiler chicks were assigned to 4 treatments (Diets containing palm, corn, linseed or olive oils) with 5 replicates. At day 28 of age, 2 chickens were removed from each replicate, then blood samples and liver tissue samples were collected for analyses. Feeding linseed and olive oil reduced feed conversion ratio compared to corn and palm oils. The lowest level of insulin was for chickens fed linseed oil and corn oil. The highest level of corticosterone was found in chickens fed palm oil and the lowest level was for those received linseed oil. Chickens received linseed and corn oils had the highest levels of T3 and T4 and those fed palm and olive oils had the lowest levels. The highest HSP 70 gene expression was for chickens fed diet containing olive and linseed oils and the lowest one was for those fed corn and palm oils. It was concluded that olive oil and linseed oil could improve performance and heat tolerance of chickens under heat stress.

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Voon, Phooi Tee, Sin Tien Lee, Tony Kock Wai Ng, et al. "Intake of Palm Olein and Lipid Status in Healthy Adults: A Meta-Analysis." Advances in Nutrition 10, no. 4 (2019): 647–59. http://dx.doi.org/10.1093/advances/nmy122.

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ABSTRACT It is not clear whether a saturated fatty acid–rich palm olein diet has any significant adverse effect on established surrogate lipid markers of cardiovascular disease (CVD) risk. We reviewed the effect of palm olein with other oils on serum lipid in healthy adults. We searched in MEDLINE and CENTRAL: Central Register of Controlled Trials from 1975 to January 2018 for randomized controlled trials of ≥2 wk intervention that compared the effects of palm olein (the liquid fraction of palm oil) with other oils such as coconut oil, lard, canola oil, high-oleic sunflower oil, olive oil, peanut oil, and soybean oil on changes in serum lipids. Nine studies were eligible and were included, with a total of 533 and 542 subjects on palm olein and other dietary oil diets, respectively. We extracted and compared all the data for serum lipids, such as total cholesterol (TC), LDL cholesterol, HDL cholesterol, triglyceride, and TC/HDL cholesterol ratio. When comparing palm olein with other dietary oils, the overall weighted mean differences for TC, LDL cholesterol, HDL cholesterol, triglycerides, and the TC/HDL cholesterol ratio were −0.10 (95% CI: −0.30, 0.10; P = 0.34), −0.06 (95% CI: −0.29,0.16; P = 0.59), 0.02 (95% CI: −0.01, 0.04; P = 0.20), 0.01 (95% CI: −0.05, 0.06; P = 0.85), and −0.15 (95% CI: −0.43, 0.14; P = 0.32), respectively. Overall, there are no significant differences in the effects of palm olein intake on lipoprotein biomarkers (P > 0.05) compared with other dietary oils. However, dietary palm olein was found to have effects comparable to those of other unsaturated dietary oils (monounsaturated fatty acid– and polyunsaturated fatty acid–rich oils) but differed from that of saturated fatty acid–rich oils with respect to the serum lipid profile in healthy adults.

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Ikeda, Koji, Kento Tomohiro, and Hironobu Ito. "Lubricant Potentiality of Degraded Palm Oil and Effect of Free Fatty Acid Addition." Advanced Materials Research 845 (December 2013): 316–19. http://dx.doi.org/10.4028/www.scientific.net/amr.845.316.

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Lubricant potentiality of used cooking palm oil was examined through four-ball friction test with modified palm oils of two different types. One category of tested oils was the heat-treated type which is expected as degraded palm oil by heating during cooking. The degraded degree was controlled by the length of heating period, then the acid number, AN, was varied between 0 and 3.5[mgKOH/. For these oils, temperature dependence druing friction test was examined on friction and wear between 40-100 ̊?C. Degraded palm oil of higher acid number showed wear much more, and the wear for AN=3.5 showed almost double of non-heat treaed oil, but half of mineral oil, VG32, up to 85 ̊?C. Friction coefficient did not show strong dependence of the acid number, and the value was 20%-lower than VG32 between 40-100 ̊ ?C.The other was the free-fatty acid added type which is expected as degraded palm oil by hydrolysis during cooking where boiled water reacts with palm oil. Four model oils were prepared, and each of them contained one of major palm oil components, such as palmitic acid, stearic acid, oleic acid and linoleic acid, at 10mass% to refined palm oil. For these oils, friction test was performed at 40 and 100 ̊ ?C to examine the effect of temperature. Addition of stearic acid showed lowest wear and lowest friction at both temperatures among fatty acid added types. The experimental results are discussed with kinematic viscosity, apprent normal stress, and apprent tangential shear stress.

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Aung, Wai, Espen Bjertness, Aung Htet, et al. "Fatty Acid Profiles of Various Vegetable Oils and the Association between the Use of Palm Oil vs. Peanut Oil and Risk Factors for Non-Communicable Diseases in Yangon Region, Myanmar." Nutrients 10, no. 9 (2018): 1193. http://dx.doi.org/10.3390/nu10091193.

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The majority of vegetable oils used in food preparation in Myanmar are imported and sold non-branded. Little is known about their fatty acid (FA) content. We aimed to investigate the FA composition of commonly used vegetable oils in the Yangon region, and the association between the use of palm oil vs. peanut oil and risk factors for non-communicable disease (NCD). A multistage cluster survey was conducted in 2016, and 128 oil samples from 114 households were collected. Data on NCD risk factors were obtained from a household-based survey in the same region, between 2013 and 2014. The oils most commonly sampled were non-branded peanut oil (43%) and non-branded palm oil (19%). Non-branded palm oil had a significantly higher content of saturated fatty acids (36.1 g/100 g) and a lower content of polyunsaturated fatty acids (9.3 g/100 g) than branded palm oil. No significant differences were observed regarding peanut oil. Among men, palm oil users had significantly lower mean fasting plasma glucose levels and mean BMI than peanut oil users. Among women, palm oil users had significantly higher mean diastolic blood pressure, and higher mean levels of total cholesterol and triglycerides, than peanut oil users. Regulation of the marketing of non-branded oils should be encouraged.

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O. A, Ezechukwu. "VEGETABLE OILS FOR HIGH VOLTAGE INSULATION BY." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 10, no. 4 (2013): 1553–62. http://dx.doi.org/10.24297/ijct.v10i4.3256.

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This paper discusses the findings of the study of the possibility of using some vegetable oils as high voltage insulation materials. Samples of palm oil (elaeis guineensis), palm kernel oil (elaeis guineensis), coconut oil (cocos nucifera), groundnut oil(Arachis hypogea) and local pear oil(dacryodes edulis) were obtained from Ekwulobia town, processed and tested. The results obtained showed exciting performance for palm oil, palm kernel oil and groundnut oil. Investigation on the dielectric strength of local pear oil (dacryodes eduli) is inconclusive because the sample collected was not sufficient for the tests.

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Parveez, Ghulam Kadir Ahmad, Masnita Mohd Masri, Alizah Zainal, et al. "Transgenic oil palm: production and projection." Biochemical Society Transactions 28, no. 6 (2000): 969–72. http://dx.doi.org/10.1042/bst0280969.

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Oil palm is an important economic crop for Malaysia. Genetic engineering could be applied to produce transgenic oil palms with high value-added fatty acids and novel products to ensure the sustainability of the palm oil industry. Establishment of a reliable transformation and regeneration system is essential for genetic engineering. Biolistic was initially chosen as the method for oil palm transformation as it has been the most successful method for monocotyledons to date. Optimization of physical and biological parameters, including testing of promoters and selective agents, was carried out as a prerequisite for stable transformation. This has resulted in the successful transfer of reporter genes into oil palm and the regeneration of transgenic oil palm, thus making it possible to improve the oil palm through genetic engineering. Besides application of the Biolistics method, studies on transformation mediated by Agrobacterium and utilization of the green fluorescent protein gene as a selectable marker gene have been initiated. Upon the development of a reliable transformation system, a number of useful targets are being projected for oil palm improvement. Among these targets are high-oleate and high-stearate oils, and the production of industrial feedstock such as biodegradable plastics. The efforts in oil palm genetic engineering are thus not targeted as commodity palm oil. Due to the long life cycle of the palm and the time taken to regenerate plants in tissue culture, it is envisaged that commercial planting of transgenic palms will not occur any earlier than the year 2020.

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Yoboué, Béhibolo A., Djedjro C. Akmel, Zita EB N’Goran-Aw, Rémi K. Coulibaly, Gnomblesson G. Tiahou, and Nogbou E. Assidjo. "Hypercholesterolemia Risk Related to Consumption of Palm Oil Produced in Côte d’Ivoire." Journal of Food Research 8, no. 3 (2019): 93. http://dx.doi.org/10.5539/jfr.v8n3p93.

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The purpose of this work is to determine the consumption pattern estimated from quantity and frequency of consumption of palm oil produced in C&ocirc;te d&#39;Ivoire in order to assess risk of hypercholesterolemia related to these oils. To achieve this objective, a cross - sectional survey was conducted with 417 randomly sampled people in seven district capitals of C&ocirc;te d &#39;Ivoire. This investigation shows that average of crude and refined R1 and refined R2 palm oil consumed are 24.52 mL, 25.88 mL and 24.13 mL per person per day, respectively. In addition, datas on consumption frequency of different palm oils indicate that refined palm oils are most prevalent in population&rsquo;s dishes. Daily consumption frequency of crude and refined palm oils varies between 7.43 % and 85.40 %. These oils contain 32.95 % to 48.04 % palmitic acid (hazard). For a bioavailability of 100 % palmitic acid, the risk assessment for hypercholesterolemia indicates that 26.02 %, 25.80 % and 21.73 % of surveyed populations ingest higher quantities of palmitic acid. Those are greater than the recommended rate Anses (National Agency for Food Safety, Environment and Labor) during consumption crude and refined palm oils. 26,020, 25,800 and 21,730 cases of increase in serum cholesterol per 100,000 inhabitants after consumption crude, R1 and R2 oils. Concerning a bioavailability of 11 %, risk of hypercholesterolemia is 0 %; 0.02 % and 0.03 % respectively for the consumers of crude, R2 and R1 palm oils. Hypercholesterolemia risk varies from the mode of consumption and oils types.

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Dissertations / Theses on the topic "Palm oils"

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Ramos, Boris. "Production of biodiesel from vegetable oils." Thesis, KTH, Skolan för kemivetenskap (CHE), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-145863.

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The production of biodiesel using vegetables oils is studied. Palm oil and its use for production of biodiesel have been focused. Palm tree is very productive and one of the most profitable for biodiesel production. Among the oilseed crops palm tree produce more oil per hectare. Palm oil has a good availability and a competitive price. The production of palm oil at the industrial plantation level has caused environmental damage. The Roundtable on Sustainable Palm Oil has established principles and criteria in order to certify a sustainable cultivation of the palm oil. The experimental work involves the production of biodiesel using corn oil. Ethanol and methanol are used as alcohols. Sodium and potassium hydroxides are selected as catalyst. The ratio alcohol to oil is the most important parameter in the production of biodiesel. An excess of alcohol is required to drive the reaction to the right. In the experiments with ethanol the yield of biodiesel increased with the ratio ethanol/oil achieving the highest yield at a molar ratio ethanol/oil: 7.78. In the experiments with methanol, using 0.9 g NaOH and 1 hour reaction time the highest yield was obtained with a molar ratio methanol:oil = 9. Using KOH as catalyst and 2 hour reaction time a very good yield is already obtained with a molar ratio methanol:oil = 4.5 The amount of catalyst is another studied parameter. In the experiments with ethanol, the amount of 0.8 mg NaOH and 1.2 mg KOH for 200 ml corn oil (0.22 mol) is enough in order to obtain a good yield. An increase of the amount of catalyst does not produce an increase of the yield of biodiesel. In experiments with methanol, using the lowest tested amount catalyst (0.85 g KOH and 0.23 g NaOH) a good yield of biodiesel is obtained. The effects of the reaction time, rate of mixing and the reaction temperature were studied in the experiments with methanol. The yield of biodiesel increased when the reaction time is increased from 1 to 2 hours. The yield of produced biodiesel increased from 90% to 94% when the rate of mixing was increased from 500 to 1500 rpm. Often the transesterification is carried out at a temperature near the boiling point of alcohol. The highest yield was obtained at 60 oC with KOH and at 55 oC using NaOH but already at 40 oC a good yield was obtained (89%).

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Soewono, Adri A. "Blending palm oil with flaxseed oil or menhaden fish oil to produce enriched omega-3 oils for deep-fat-frying." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/32399.

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Two of the major dietary food sources of omega-3 fatty acids are flaxseed oil and fish oil; the former being a rich source of PUFA (e.g. α-linolenic acid (α-LA)), while the latter is a source of HUFA (e.g. eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)). In this study, palm oil, a commonly used vegetable oil that is widely available in Asian and African countries, was blended with flaxseed (omega 3-PUFA) and fish oil (menhaden oil) (omega-3 HUFA); respectively, to obtain blended oils that both contained a 1: 4 ratio of omega-3 :omega 6 fatty acids. Rosemary extract (0.02% w/w) was added to the oil blends to stabilize the oil during use for deep-fat frying. Eight hours of heating at 180 °C was used to determine the stability of omega-3 fatty acids and uptake from the omega-3 enriched palm oil into fried potatoes. Lipid oxidation and thermal degradation of the palm oil blends, along with retention of α-LA , EPA, and DHA were measure of oil blends stability. Linoleic acid content in flax-palm oil blend did not change during frying when in the presence of different antioxidant treatments. The α-LA content of heated flax-palm oil blend was significantly reduced (P<0.05) after 8 hours of frying. Meanwhile, linoleic acid and EPA content in the fish-palm oil blend revealed significant (P<0.05) decreases in concentration after 8 hours of frying regardless of the presence of antioxidant. The DHA concentration was significantly lower when present in the absence of antioxidant (P<0.05). Totox significantly increased (P<0.05) in the blended oils after 8 hours of frying; albeit the extent of oxidation and thermal degradation was reduced when rosemary extract was added. A significant uptake of omega-3 fatty acids in both the omega-3 PUFA (e.g. α-LA) and HUFA (e.g. EPA and DHA), respectively, occurred in potatoes fried in the respective blended oils. Although omega-3 fatty acid uptake was prevalent in potatoes fried in both blended oils, the effect of heating reduced the optimal 1:4 ratio of omega-3 :omega-6 to a 1:6-l :7 ratio. This loss in omega-3, relative to omega- 6, was attributed to thermal oxidation; a reaction not totally preventable by adding antioxidants to the frying oils. These functional omega-3 enhanced oils when used to process potatoes gave forth products that represented 1/10th suggested intake for EPA+DHA and l/50th the daily requirement for α-LA .<br>Land and Food Systems, Faculty of<br>Graduate

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Ma, Wei, Que Kong, Vincent Arondel, et al. "WRINKLED1, A Ubiquitous Regulator in Oil Accumulating Tissues from Arabidopsis Embryos to Oil Palm Mesocarp." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etsu-works/4753.

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WRINKLED1 (AtWRI1) is a key transcription factor in the regulation of plant oil synthesis in seed and non-seed tissues. The structural features of WRI1 important for its function are not well understood. Comparison of WRI1 orthologs across many diverse plant species revealed a conserved 9 bp exon encoding the amino acids “VYL”. Site-directed mutagenesis of amino acids within the ‘VYL’ exon of AtWRI1 failed to restore the full oil content of wri1-1 seeds, providing direct evidence for an essential role of this small exon in AtWRI1 function. Arabidopsis WRI1 is predicted to have three alternative splice forms. To understand expression of these splice forms we performed RNASeq of Arabidopsis developing seeds and queried other EST and RNASeq databases from several tissues and plant species. In all cases, only one splice form was detected and VYL was observed in transcripts of all WRI1 orthologs investigated. We also characterized a phylogenetically distant WRI1 ortholog (EgWRI1) as an example of a non-seed isoform that is highly expressed in the mesocarp tissue of oil palm. The C-terminal region of EgWRI1 is over 90 amino acids shorter than AtWRI1 and has surprisingly low sequence conservation. Nevertheless, the EgWRI1 protein can restore multiple phenotypes of the Arabidopsis wri1-1 loss-of-function mutant, including reduced seed oil, the “wrinkled” seed coat, reduced seed germination, and impaired seedling establishment. Taken together, this study provides an example of combining phylogenetic analysis with mutagenesis, deep-sequencing technology and computational analysis to examine key elements of the structure and function of the WRI1 plant transcription factor.

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Tabee, Elham. "Lipid and phytosterol oxidation in vegetable oils and fried potato products /." Uppsala : Department of Food Science, Swedish University of Agricultural Sciences, 2008. http://epsilon.slu.se/200892.pdf.

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Fortes, Isabel Cristina Pereira. "Analytical pyrolysis and GC/MS of prolysates from vegetable oils (and their calcium soaps) extracted from the fruit of Macauba palm (Acrocomia sclerocarpa M.)." Thesis, University of Salford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261926.

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Soares, Fabiana Andreia Schafer de Martini. "Efeito da interesterificação química sobre as propriedades físico-químicas de misturas de estearina e oleína de palma." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/9/9133/tde-10032010-100042/.

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O desafio das indústrias de alimentos na substituição da gordura trans em diversos produtos reside no desenvolvimento de formulações e processos que apresentem funcionalidade equivalente e viabilidade econômica. A interesterificação química representa uma opção tecnológica importante para a produção de gorduras visando diversas aplicações comerciais, sem a formação de ácidos graxos trans. O óleo de palma contém quantidades aproximadamente iguais de ácidos graxos saturados e insaturados e pelo seu fracionamento obtêm-se duas frações: a estearina (fração sólida) e a oleína (fração líquida). A estearina e oleína de palma são opções interessantes para a produção de grande variedade de produtos como margarinas e shortenings. Assim, o objetivo deste trabalho foi modificar as propriedades físico-químicas de misturas de estearina e oleína de palma pelo uso da interesterificação química. As amostras foram analisadas quanto à composição em ácidos graxos e triacilgliceróis, distribuição regioespecífica dos ácidos graxos nos triacilgliceróis, índice de iodo, pontos de amolecimento e de fusão, conteúdo de gordura sólida, consistência e estrutura cristalina. Os ácidos graxos saturados são predominantes na estearina (71,9%), sendo que 65,5% correspondem ao ácido palmítico. A oleína tem como principal constituinte o ácido oléico, que representa 45,4%. À medida que aumenta a proporção de oleína de palma nas misturas, aumentam a quantidade de ácidos graxos insaturados e o índice de iodo e diminui a quantidade de ácidos graxos saturados. Após a interesterificação química, os pontos de fusão e amolecimento, a consistência e o conteúdo de gordura sólida aumentaram nas misturas que apresentavam maior proporção de oleína em função do aumento no teor de triacilgliceróis trissaturados. Por outro lado, estas propriedades não se modificaram nas misturas com maior proporção de estearina. Este comportamento se deve à distribuição aleatória dos ácidos graxos nos triacilgliceróis após a interesterificação, que forma triacilgliceróis em proporções diferentes das existentes originalmente. Os principais triacilgliceróis nas misturas foram PPP, PPO e POO. Antes da interesterificação os ácidos graxos saturados foram encontrados principalmente nas posições sn-1,3. Mudanças significativas na composição dos ácidos graxos na posição sn-2 após a interesterificação química foram encontradas em misturas com mais de 60% de oleína de palma. A mistura e a interesterificação permitiram obter gorduras com diferentes graus de plasticidade, aumentando as possibilidades de uso das frações estearina e oleína de palma.<br>The challenge of the food industries for the replacement of trans fat in various products lies in the development of formulations and processes which have equivalent functionality and economic viability. The chemical interesterification of palm stearin and palm olein is an important technological option for the production of fats targeting commercial applications, without formation of trans fatty acids Palm oil contains similar amounts of saturated and unsaturated fatty acids. After fractionation two fractions are obtained: stearin (solid fraction) and olein (liquid fraction). Palm stearin and palm olein are alternatives for the production of many products, such as margarines and shortenings. The objective of this work was to modify the physical and chemical properties of mixtures of palm stearin and palm olein by using chemical interesterification. The following properties were analyzed: fatty acid and triacylglycerol compositions, regiospecific distribution of fatty acids in triacylglycerols, iodine value, softening and melting points, solid fat content, consistency and crystal microstructure. Saturated fatty acids are predominant in palm stearin (71.9%), which corresponds to 65.5% of palmitic acid. Palm olein has as its main constituent the oleic acid, which represents 45.4% of the unsaturated fatty acids. The increase of the proportion of palm olein in the mixture causes increase on the amount of unsaturated fatty acids and iodine value and decrease on the content of saturated fatty acids. After chemical interesterification, melting and softening points, consistency and solid fat content increased in the blends that had higher proportion of palm olein, as a consequence of the increase in the trisaturated triacylglycerols. On the other hand, these properties did not alter in the blends with higher proportion of palm stearin. This behavior is due to the random distribution of fatty acids in triacylglycerols after interesterification, which forms triacylglycerols in proportions that are different from those originally present. The major triacylglycerols in the blends were PPP, PPO and POO. Before interesterification the saturated fatty acids were found mainly in the sn-1,3 positions. Significant changes in the fatty acid composition in the sn-2 position after chemical interesterification were found in blends with more than 60 % of palm olein. Blending and interesterification of fats resulted in structured lipids with different degrees of plasticity, increasing the possibilities of use of stearin and olein fractions.

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Marzullo, Rita de Cassia Monteiro. "Análise de ecoeficiência dos óleos vegetais oriundos da soja e palma, visando a produção de biodiesel." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-09012008-155336/.

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O biodiesel é um combustível proveniente de fontes lipídicas renováveis (óleos ou gorduras, vegetais ou animais). Sua obtenção se dá por craqueamento (térmico ou catalítico) ou através das reações de transesterificação ou esterificação. Pela reação de transesterificação, se tem a reação de um triglicerídeo com um alcool de cadeia curta (etanol ou metanol) resultando na mistura de ésteres etílicos ou metílicos (biodiesel) mais a glicerina. Já na reação de esterificação, se tem a reação de ácidos graxos livres com um álcool, também de cadeia curta, resultando a mistura de ésteres sem a formação do glicerol. O biodiesel é considerado na atualidade como uma alternativa em potencial para a substituição do diesel de origem fóssil, pois além da semelhança em suas propriedades, este biocombustível reduz a emissão de poluentes emitidos pelos veículos, como SOx e CO2. O Brasil é contemplado internacionalmente como um dos países com maior potencial de produção e exportação de biodiesel, devido à sua grande extensão territorial com excelentes condições de clima para o plantio de diversas fontes oleaginosas. Frente a grande variedade de óleos vegetais que poderão ser utilizados para a produção de biodiesel, faz-se necessária a adoção de alguns critérios para a tomada de decisão sobre a melhor opção de matéria-prima a ser utilizada. Este trabalho expõe o resultado comparativo da Análise de Ecoeficiência, feita através de uma ferramenta desenvolvida pela BASF, entre duas potenciais matérias primas para biodiesel: óleo de soja e óleo de palma. Esta análise pondera o desempenho ambiental de forma integrada com o desempenho econômico, a qual seu resultado é apresentado em um gáfico de fácil identificação do produto mais ecoeficiente, segundo os critérios adotados pela ferramenta. O cálculo do desempenho ambiental é feito através da metodologia de Avaliação do Ciclo de Vida (ACV), em conjunto com uma avaliação simplificada de riscos de acidentes. Desta forma, a partir dos dados do inventário, são estimados os potenciais impactos provenientes das emissões atmosféricas (EE, DCO, FFO e CA) que são posteriormente agregados às emissões para o solo e água formando uma classe única de \"rejeitos\". Assim sendo, as classes analisadas pela ferramenta para a determinação do desempenho ambiental são: consumo de energia, consumo de recursos naturais, rejeitos, uso da terra, toxicidade humana e potencial de riscos. O cálculo do desempenho econômico é feito através da somatória dos custos durante o ciclo de vida do sistema de produto considerado. O estudo comparativo considera a quantidade necessária de cada óleo para produzir biodiesel capaz de gerar 40GJ de energia, com as cargas ambientais distribuídas aos subprodutos do sistema, de acordo com critérios econômicos de alocação. A abordagem adotada é do tipo \"cradle to gate\", ou seja, do berço ao portão da usina de extração do óleo bruto. Como resultado, a Matriz de Ecoeficiência aponta o óleo de palma como a alternativa mais favorável quando comparado ao óleo de soja devido ao seu melhor desempenho econômico e melhor desempenho ambiental.<br>The Biodiesel is a fuel proceeding from renewable lipid sources ( oils and fats from vegetables or animals).It can be obtained from cracking (thermal or catalytic) or through chemicals reactions (trasnesterification or esterification). In transesterification, the reaction is between any triglycerides and an alcohol with short chain such as methanol or ethanol, resulting an ester mix (biodiesel) and glycerin. In esterification, the reaction occurs between free fatty acids and an alcohol with short chain as well, resulting biodiesel without glycerol formation. Now a day, biodiesel is considered as a potential alternative for fossil fuel substitution, because beyond the similarity in its properties, this biofuel reduces pollutants emissions from vehicles such as SOx and CO2. Brazil is internationally contemplated as one of the countries with greater potential to produce and export biodiesel, due to its territorial extension and excellent climate conditions for diverse vegetable lipid agriculture sources . In front of the great variety os vegetable oils that coud be used for biodiesel production, becomes necessary some criteria adoption to decision taking on the better raw material option to be used. This paper displays a comparative eco-efficiency analysis of two potential raw-material to biodiesel production: palm oil and soybean oil. This analysis was made according to Eco-Efficiency tool developed by BASF. The Eco-Efficiency analysis compares environmental and economical performance of two or more alternatives, within an integrated way. The results are shown in a simple portfólio where is possible to identificate the better alternative (more ecoefficient than the others). The environmental approach is based on Life Cycle Assessment methodology (ISO 14040) associated to simplified risks of industrial accidents analysis. In order to determine an environmental indicator, six classes of impact are analysed: energy consumption, natural material resurces consumption, land use, toxicity potential, acidents risks potential and emissions. Emissions values are initially calculated separately as air, water and soil emissions (waste). The emissions to air include four impact categories as well: Global Warming Potential (GWP), Ozone Depletion Potential (ODP), Photochemical Ozone Creation Potential (POCP) and Acidification Potential (AP). All impact classes are combined through weighting factors and the aggregation results in only one environmental indicator. The economical approach is based in Life Cycle costs and generates an economical indicator. This kind of analyse is made to compare products that have the same function, and the functional unity used in this work was biodiesel energy generation of 40 GJ, using palm and soybeam oils as raw-material. The final result of analysis shows that palm oil is betther in both: environmental and economical aspects, resulting in the most ecoefficient alternative.

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Irías-Mata, Andrea Paola [Verfasser], and Jan [Akademischer Betreuer] Frank. "Tocotrienols, tocopherols and tocomonoenols : characterization in Costa Rican palm oils, and intracellular and tissue distribution as a function of the hepatic alpha-tocopherol transfer protein / Andrea Paola Irías-Mata ; Betreuer: Jan Frank." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2019. http://d-nb.info/1182423574/34.

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Irías, Mata Andrea [Verfasser], and Jan [Akademischer Betreuer] Frank. "Tocotrienols, tocopherols and tocomonoenols : characterization in Costa Rican palm oils, and intracellular and tissue distribution as a function of the hepatic alpha-tocopherol transfer protein / Andrea Paola Irías-Mata ; Betreuer: Jan Frank." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2019. http://d-nb.info/1182423574/34.

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Castillo, Caceres Miluska. "Obtenção de gorduras low trans por interesterificação quimica." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254687.

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Orientador: Lireny Aparecida Guaraldo Gonçalves<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-10T11:18:39Z (GMT). No. of bitstreams: 1 CastilloCaceres_Miluska_D.pdf: 4551076 bytes, checksum: 6ee1a84c4711f4c33fe2827986175ce6 (MD5) Previous issue date: 2008<br>Resumo: As gorduras trans, principalmente presentes nos alimentos industrializados como biscoitos, gorduras para fritura, margarinas, entre outros, são resultados da hidrogenação parcial, processo utilizado pela indústria há mais de 100 anos<br>Abstract: Trans fats, most contained within food industrialized and biscuits, fats for frying, margarine and others, are the result of partial hydrogenation, a process used by the industry for more than 100 years<br>Doutorado<br>Doutor em Tecnologia de Alimentos

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Books on the topic "Palm oils"

1

Penna, Susan A. Oil palm: Cultivation, production and dietary components. Nova Science Publishers, 2011.

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Malaysia. Kementerian Perusahaan Utama. Malaysian Palm Oil Board., ed. Proceedings of the PIPOC 2003 International Palm Oil Congress: Palm oil, the power-house for the global oils & fats economy. Malaysian Palm Oil Board, Ministry of Primary Industries, Malaysia, 2003.

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Malaysia, Lembaga Minyak Sawit, ed. Proceedings of oleo and specialty chemicals conference: PIPOC 2011 International Palm Oil Congress. Malaysian Palm Oil Board, Ministry of Plantation Industries and Commodities, Malaysia, 2011.

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Palmetti, Maria L. Palm oil: Nutrition, uses, and impacts. Nova Science Publishers, 2011.

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World Conference on Lauric Oils (1994 Manila, Phiippines). Proceedings of the World Conference on Lauric Oils: Sources, processing, and applications. Edited by Applewhite Thomas H. AOCS Press, 1994.

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Wahid, Mohd Basri B., and Lembaga Minyak Sawit Malaysia, eds. Proceedings of the 2004 MPOB National Seminar on Green and Renewable Biofuel: Future outlook of biofuel in Malaysia : 6-7 December 2004, Pan Pacific Hotel, Kuala Lumpur International Airport, Malaysia. Malaysian Palm Oil Board, Ministry of Plantation Industries and Commodities, Malaysia, 2005.

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An economic analysis of trade liberalization in the international market for palm and related oils. Untan Press, 2008.

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Alwi, Ali. An economic analysis of trade liberalization in the international market for palm and related oils. Untan Press, 2008.

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1937-, Johnson Dennis Victor, ed. Oil palms and other oilseeds of the Amazon. Reference Publications, 1985.

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Fortes, Isabel Cristina Pereira. Analytical pyrolysis and GC/MS of pyrolysates from vegetable oils (and their calcium soaps) extractedfrom the fruit of Macauba palm (Acrocomia sclerocarpa M.). University of Salford, 1994.

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Book chapters on the topic "Palm oils"

1

Krist, Sabine. "Palm Kernel Oil/Palm Oil." In Vegetable Fats and Oils. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-30314-3_82.

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Lin, Siew Wai. "Palm Oil." In Vegetable Oils in Food Technology. Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9781444339925.ch2.

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Enshasy, Hesham El, Mariani Abdel Hamed, and Ali Zinedine Boumehira. "Palm OilProcess, Characterization, and Applications." In Edible Oils. CRC Press, 2017. http://dx.doi.org/10.1201/9781315152493-7.

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Ong, A. S. H., Y. M. Choo, and C. K. Ooi. "Developments in palm oil." In Developments in Oils and Fats. Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-2183-9_6.

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Oliveira, Debora, and Tito Livio M. Alves. "Enzymatic Alcoholysis of Palm and Palm Kernel Oils." In Twentieth Symposium on Biotechnology for Fuels and Chemicals. Humana Press, 1999. http://dx.doi.org/10.1007/978-1-4612-1604-9_76.

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Choudhary, Monika, and Kiran Grover. "Palm (Elaeis guineensis Jacq.) Oil." In Fruit Oils: Chemistry and Functionality. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-12473-1_42.

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Mushtaq, Muhammad, Sumia Akram, and Syeda Mariam Hasany. "Seje (Oenocarpus/Jessenia bataua) Palm Oil." In Fruit Oils: Chemistry and Functionality. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-12473-1_49.

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Lau, Teck-Chai. "History and Business Prospects of the Palm Oil Industry, Case of Malaysia." In Edible Oils. CRC Press, 2017. http://dx.doi.org/10.1201/9781315152493-12.

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Amri, Ibrahim Nuzul. "The Lauric (Coconut and Palm Kernel) Oils." In Vegetable Oils in Food Technology. Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9781444339925.ch6.

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Berger, K. "Oils from under-utilised palm and forest products." In Technological Advances in Improved and Alternative Sources of Lipids. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2109-9_8.

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Conference papers on the topic "Palm oils"

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Calabria, Alfonso, Roberto Capata, and Mario Di Veroli. "The Power Generation With Vegetable Oils: A Case Study." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62470.

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The utilization of vegetable oils, and in particular the palm oil, as fuel in the power generation has had a remarkable development in the last few years. Generally the vegetable oil can be used with a particular marine-derived diesel ICE, with low rpm and an electric conversion efficiency of about 40%. The efficiency is strictly connected to the size of the plant. Moreover, the considerable amount of the required vegetable oil to feed the system forces to import the fuel. This is one of the most critical elements as the palm oil is subject to continuous and wide variations in prices. Due to this variation it is difficult to obtain a stable and convenient fuel supply over a long period of time. The present work is aimed at evaluating and estimating the economic, technical and environmental feasibility of a 20 MW plant for the stationary power generation fed with palm oil, enlightening the system solution (technical constructive aspects) and the economic appraisal, on the basis of variations in oil prices. Finally, the economic sensibility analysis based on the fuel cost and the European mechanisms of biomass incentives.

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Gu, Jianfeng, Jun Xu, Rosa L. Simencio Otero, Jônatas M. Viscaino, Lauralice C. F. Canale, and George E. Totten. "Heat Transfer Coefficients and Quenching Performance of Vegetable Oils." In HT2019. ASM International, 2019. http://dx.doi.org/10.31399/asm.cp.ht2019p0272.

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Abstract Vegetable oils are currently using basestocks for biodegradable and renewable quenchant formulation. However, there are relatively few references relating to their true equivalence, or lack thereof, relative to the quenching performance of petroleum oil-based quenchant formulations. To obtain an overview of the variability of vegetable oil quenching performance, cooling curves were determined, and the heat transfer coefficient profiles were calculated at the Institute of Materials Modification and Modeling School of Materials Science and Engineering in Shanghai, China. The vegetable oils that were studied included canola and palm oils. Cooling curves were obtained using the Tensi multiple surface thermocouple 15 mm diameter x 45 mm cylindrical Inconel 600 probe. For comparison, similar data were obtained with Houghtoquench HKM, an accelerated petroleum oil quenchant. The results of this work will be discussed here.

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Mannekote, Jagadeesh K., and Satish V. Kailas. "Influence of Chemical Structure on the Boundary Lubrication Properties of Vegetable Oils." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-25070.

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Vegetable oils are increasingly used as lubricant base oils, because of sustainability issues and regulations. In present study coconut, palm, sunflower and castor oils were used to represent different levels of unsaturation, where as castor oil was selected to represent influence of hydroxyl group. The effect of oxidation on the boundary lubrication properties was evaluated by subjecting the oils to accelerated ageing at 333,353 and 373 k according to AOCS method. The experiments were carried out by using of four ball tester increase in observed wear scar diameter with temperature was more with oil having higher percentage of unsaturated fatty acids. At the same time it was also observed that increase in wear scar diameter with temperature was more with castor oil compared to other oil samples. The poor boundary lubrication properties observed with aged oil samples was possibly due to the deterioration of the triglyceride structure.

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Rasaruddin, Nor Fazila, Mohamed Noor Hasan, Mas Ezatul Nadia Mohd Ruah, Sim Siong Fong, and Mohd Zuli Jaafar. "Signal processing strategies in FT-NIR and FTIR spectra of palm oils." In 2014 IEEE 10th International Colloquium on Signal Processing & its Applications (CSPA). IEEE, 2014. http://dx.doi.org/10.1109/cspa.2014.6805728.

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Kamaruzaman, Nurkhuzaiah, and Abdul Salam Babji. "Oxidative stability of red palm oils blended chicken nuggets during frozen storage." In THE 2014 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2014 Postgraduate Colloquium. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4895215.

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Quintanilla-Carvajal, Maria Ximena, M. Hernández-Carrión, M. Moyano-Molano, L. Ricaurte, and F. L. Moreno. "Effects of different drying methods on the physicochemical properties of powders obtained from high-oleic palm oil nanoemulsions." In 21st International Drying Symposium. Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/ids2018.2018.7402.

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Nanoencapsulation is an efficient process to incorporate high nutritional oils, such as high oleic palm oil (HOPO). Several drying technologies can be applied for obtaining HOPO powders. The aim of this work was to study the effect of two different drying methods (spray-drying, SP and freeze-drying, FD) on some physical properties and microstructure of powders obtained from HOPO nanoemulsions. Results showed that FD powders presented lower aw and bulk density, and higher dissolution rate than SD powders. Results suggest that SD could be a more economical alternative to FD in order to obtain HOPO powders with low moisture and aw. Keywords: freeze-drying; high oleic palm oil; nanoemulsion; spray drying

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Hornstra, E. G., A. H. Hennissen, R. Kalafusz, and D. T. S. Tan. "THE ANTITHROMBOTIC EFFECT OF PALM OIL IS CORRELATED WITH ITS CONTENTS OF VITAMIN E." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643804.

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Dietary saturated fatty acids are known to increase platelet aggregation and arterial thrombogenesis.We recently demonstrated, however, that palm oil, rich in saturated palmitic acid, has a distinct antithrombotic affect, which is associated with a decrease of the thromboxane-prostacyclin ratio in activated whole blood. To identify the antithrombotic component(s) of palm oil, seven palm oil fractions were prepared with comparable fatty acid compositions of the triglycerides but containing Various amounts of non-triglyceride material with different compositions.These fractions were fed to rats in amounts of 50 energy% for a period of 8 weeks, after which arterial thrombosis tendency was measured upon insertion of an aortic prosthesis, the aorta-loop. During loop insertion, 1 ml blood was collected in citrate for measuring platelet aggregation and ATP release in response to collagen, using the Chronolog whole blood lumi-aggregometer. Arterial thrombosis tendency was found to be negatively related to the total amount of non-triglyceride material in the various fractions (r = 0.78; p <0.05).No significant relationship was observed between arterial thrombus formation and the various sterols present in the non-triglyceride material.A significant negative correlation was found, however, with a-tocopherol (r = 0.86; p <.02). Collagen-induced platelet aggregation and ATP release in whole blood were not correlated to total amounts or α-tocopherol content of the non-triglyceride material.However, significant positive relationships were found between these platelet functions and the amountsof the various sterols (Campesterol: r = 0.70; P < 0.10 β-sitostero1 : r = 0.69; P <0.10. Cholesterol : r = 0.81; P < 0.05).These findings demonstrate that effects of edible oils on platelet function and arterial thrombogenesisare not only mediated by the fatty acid compostion of the triglycerides, but can also be determined by 'minor components', present in the non-triglyceride part of the oils.

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Aditama, S. "Dielectric properties of palm oils as liquid insulating materials: effects of fat content." In Proceedings of 2005 International Symposium on Electrical Insulating Materials, 2005. (ISEIM 2005). IEEE, 2005. http://dx.doi.org/10.1109/iseim.2005.193334.

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Bettocchi, R., M. Cadorin, M. Morini, M. Pinelli, P. R. Spina, and M. Venturini. "Assessment of the Performance and of the Profitability of CHP Energy Systems Fed by Vegetable Oils." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59022.

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In this paper, energy and economic analyses of vegetable oil fed energy systems are presented. The paper focuses on the process from oil to energy, while the economic costs of the transformation process of the biomass from field to oil is assumed embodied in the cost of the oils. Five different oils are considered (sunflower, rapeseed, soybean, palm and waste fried oil) as fuels for cogenerative Internal Combustion Engines, also running in combined cycle configuration. In particular, the considered combined cycle is composed of Internal Combustion Engines and Organic Rankine Cycle modules. Energy analyses allow the evaluation of the installed power, of the produced energies, and of the primary energy saving index for different yearly oil mass values. The results of the economic analyses as a function of yearly oil mass are also presented. The cost sources are highlighted in order to point out the major contributors. Moreover, analyses of the limit value of incentive and oil price, in order to guarantee plant profitability, are carried out.

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Simencio Otero, Rosa L., Sándor Szénási, Zoltán Fried, et al. "Parallelized Particle Swarm Optimization to Estimate the Heat Transfer Coefficients of a Series of Vegetable Oils in Comparison with Typical Fast Petroleum Quench Oil Quenchant." In HT2019. ASM International, 2019. http://dx.doi.org/10.31399/asm.cp.ht2019p0260.

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Abstract An inverse solver for the estimation of the temporospacial heat transfer coefficients (HTCs), without using prior information of the thermal boundary conditions, was used for immersion quenching into a series of vegetable oils and two commercial petroleum oil quenchants. The Particle Swarm Optimization method was used on near-surface temperature-time cooling curve data obtained with the so-called Tensi multithermocouple 12.5 mm diameter x 45 mm Inconel 600 probe. The fitness function to be minimized by a particle swarm optimization (PSO) approach is defined by the deviation of the measured and calculated cooling curves. The PSO algorithm was parallelized and implemented on a Graphics Processing Unit architecture. This paper describes in detail the PSO methodology to compare and differentiate the potential quenching properties attainable with a series of vegetable oils including: cottonseed, peanut, canola, coconut, palm, sunflower, corn and a soybean oil vs a typical accelerated petroleum oil quenchant.

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Reports on the topic "Palm oils"

1

S., Savilaakso, Petrokofsky G., Zrust M., and Guariguata M.R. Palm oil and biodiversity. Center for International Forestry Research (CIFOR), 2014. http://dx.doi.org/10.17528/cifor/004559.

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Y.K., Nchanji, Tataw O., Nkongho R.N., and Levang P. Artisanal Milling of Palm Oil in Cameroon. Center for International Forestry Research (CIFOR), 2013. http://dx.doi.org/10.17528/cifor/004378.

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R.N., Nkongho, Feintrenie L., and Levang P. The non-industrial palm oil sector in Cameroon. Center for International Forestry Research (CIFOR), 2014. http://dx.doi.org/10.17528/cifor/004859.

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Asante, Kofi Takyi. Political Economy of the Oil Palm Value Chain in Ghana. Institute of Development Studies (IDS), 2021. http://dx.doi.org/10.19088/apra.2021.008.

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Oil palm (Elaeis guineensis) is of strategic importance to the Ghanaian economy. It is the second most important industrial crop after cocoa and is used widely in local food preparation as well as in industrial processing. In spite of its importance, however, oil palm has consistently underperformed since the early twentieth century. This paper conducts a value chain analysis of the crop, foregrounding the political economy factors that shape the performance of the sector. It draws on a combination of in-depth interviews conducted in March 2020 with a variety of value chain actors and a review of the secondary literature. Additionally, between late May and early June 2020, twelve further interviews were conducted as part of a rapid market survey to assess the impact of the COVID-19 pandemic on the value chain.

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Kinoshita, Eiji, Kazunori Hamasaki, Ishikawa Takashi, and Thet Myo. Combustion Characteristics of Emulsified Palm Oil Methyl Ester for Diesel Fuel. SAE International, 2005. http://dx.doi.org/10.4271/2005-32-0041.

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Research Institute (IFPRI), International Food Policy. The palm oil dilemma: Policy tensions among higher productivity, rising demand, and deforestation. International Food Policy Research Institute, 2019. http://dx.doi.org/10.2499/9780896296879.

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Hodey, Louis, and Fred Dzanku. Impact of COVID-19 on Food Systems and Rural Livelihoods in Ghana - Round 2 Report. Institute of Development Studies (IDS), 2020. http://dx.doi.org/10.19088/apra.2020.016.

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This study seeks to assess the continuing impact of COVID-19 on food systems and livelihoods in south-western Ghana and provides insights obtained from household-level and key informant data in the second of three surveys conducted during October/November 2020. This second round (R2) survey involved 107 households of oil palm farmers (86 male-headed and 21 female-headed) and 5 key local informants in the Mpohor and Ahanta West Districts of the Western Region.

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Z.R., Anderson, Kusters K., and Obidzinski K. Reducing green house gas emissions from oil palm in Indonesia: Lessons from East Kalimantan. Center for International Forestry Research (CIFOR), 2015. http://dx.doi.org/10.17528/cifor/005749.

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P., Pacheco. Soybean and oil palm expansion in South America: a review of main trends and implications. Center for International Forestry Research (CIFOR), 2012. http://dx.doi.org/10.17528/cifor/003776.

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Hodey, Louis, and Fred Dzanku. Impact of COVID-19 on Food Systems and Rural Livelihoods in Ghana - Round 1 Report. Institute of Development Studies (IDS), 2020. http://dx.doi.org/10.19088/apra.2020.003.

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Given the ravaging effects of the COVID-19 pandemic worldwide, this study seeks to estimate its likely impact on food systems and livelihoods in south-western Ghana. Our sample consisted of 110 female and male respondents drawn randomly from an APRA household survey of oil palm producers in the Mpohor and Ahanta West Districts in the Western region, as well as a set of five key informant interviews. Data collection for this study will be carried out over three rounds. This report presents insights obtained from the first round conducted during June/July 2020.

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