Relevant bibliographies by topics / Sweet sorghum ethanol: Sweet sorghum silage

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Academic literature on the topic 'Sweet sorghum ethanol: Sweet sorghum silage'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Sweet sorghum ethanol: Sweet sorghum silage"

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Alix, Hugo, Gaëtan F. Tremblay, Martin H. Chantigny, Gilles Bélanger, Philippe Seguin, Keith D. Fuller, Shabtai Bittman, et al. "Forage yield, nutritive value, and ensilability of sweet pearl millet and sweet sorghum in five Canadian ecozones." Canadian Journal of Plant Science 99, no. 5 (October 1, 2019): 701–14. http://dx.doi.org/10.1139/cjps-2019-0031.

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Sweet pearl millet [Pennisetum glaucum (L.) R. Br.] and sweet sorghum [Sorghum bicolor (L.) Moench], previously tested for ethanol production, were evaluated as high sugar crops for animal feeds to possibly replace silage corn (Zea mays L.). We compared the forage yield, nutritive value, and ensilability of one hybrid of sweet pearl millet and two of sweet sorghum to a locally adapted silage corn hybrid in five Canadian ecozones. Forage yields of sweet pearl millet and sorghum were similar to that of silage corn in the Boreal Shield, Mixedwood Plain, and Atlantic Maritime ecozones, greater in the Prairies, and lower in the Pacific Maritime ecozone. Across sites, forage dry matter concentration was less for sweet pearl millet (289 g kg−1) and sweet sorghum (245 g kg−1) than for silage corn (331 g kg−1). Sweet pearl millet had a lower total digestible nutrient (TDN) concentration (452 g kg−1 DM) and aNDF digestibility (NDFd) than sweet sorghum and silage corn along with greater neutral detergent fibre (aNDF) and water-soluble carbohydrate (WSC) concentrations than silage corn. Sweet sorghum had greater aNDF and WSC, lower starch, and similar TDN (534 g kg−1 DM) concentrations, but greater NDFd compared with silage corn. Sweet pearl millet and sorghum fermented as well as silage corn, reaching low pH values and acceptable concentrations of lactic and volatile fatty acids. Sweet sorghum is therefore a viable alternative to silage corn in Canada except in the Pacific Maritime ecozone, but early-maturing hybrids with acceptable DM concentration at harvest are required.
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Saïed, Noura, Mohamed Khelifi, Annick Bertrand, Gaëtan F. Tremblay, and Mohammed Aider. "Ensilability and Nutritive Value of Sweet Sorghum and Sweet Pearl Millet Bagasse as Affected by Different Methods of Carbohydrate Extraction for Eventual Ethanol Production." Transactions of the ASABE 64, no. 2 (2021): 401–11. http://dx.doi.org/10.13031/trans.14071.

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HighlightsJuice extraction resulted in a decrease in the nutritive value of the bagasse as compared with the initial biomass.Silages made from the second pressing bagasse were well conserved.Sweet sorghum silage has a better nutritive value than sweet pearl millet.Abstract. Pressing the biomass of sweet sorghum and sweet pearl millet in-field is one of the suggested options for bioethanol production. The extracted juice can be delivered to an ethanol plant, and the bagasse (pressing residue) can be used for ruminant feeding. Efficient carbohydrate extraction is highly important for good ethanol yield. However, enough carbohydrates must remain in the bagasse for its adequate conservation as silage. In this study, the ensilability and the chemical composition of the second pressing bagasse of sweet sorghum and sweet pearl millet were investigated. The bagasse was obtained following a second pressing of the first pressing bagasse after its impregnation with water based on three water:bagasse ratios (0.5, 1, and 1.5). Results indicated that water:bagasse ratio did not affect water-soluble carbohydrate (WSC) extraction for both crops. The second pressing bagasse of sweet sorghum and sweet pearl millet contained 80.5 ±4.6 and 60 ±4.6 g of WSC kg-1 dry matter (DM), respectively. The second pressing bagasse of both crops had reduced nutritive value compared to the initial biomass, i.e., higher neutral detergent fiber (NDF) and acid detergent fiber (ADF) concentrations along with lower non-structural carbohydrate (NSC) concentration, in vitro true digestibility of DM (IVTD), and in vitro NDF digestibility (NDFd). The second pressing bagasses of both crops also showed good ensilability, but sweet sorghum bagasse silages were of better nutritive value than sweet pearl millet bagasse silages (ADF = 446.2 ±3.7 vs. 463.2 ±3.7 g kg-1 DM, IVTD = 813.8 ±3.4 vs. 708.8 ±6.8 g kg-1 DM, and NDFd = 741.8 ±4.8 vs. 596.2 ±8.5 g kg-1 NDF, respectively). The water:bagasse ratio used for bagasse impregnation before the second pressing only affected the NDF concentration of silages, as a higher NDF concentration was obtained with a water:bagasse ratio of 1.5. Sweet sorghum and sweet pearl millet can be considered dual-purpose crops; the extracted juice can be fermented into ethanol, and the second pressing bagasse can be used to make good-quality silage. Keywords: Bagasse impregnation, Nutritive value, Silage, Sweet pearl millet, Sweet sorghum, Water-soluble carbohydrates.
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Dong, Xicun, Wenjian Li, Ruiyuan Liu, and Wenting Gu. "Recent Progresses on Industrialization of Sweet Sorghum at IMP." Journal of Agricultural Science 9, no. 10 (September 13, 2017): 57. http://dx.doi.org/10.5539/jas.v9n10p57.

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Sweet sorghum [Sorghum bicolor (L.) Moench] is not only an efficient and highly productive bioenergy crop that may help alleviate potential food-fuel tension caused by over-reliance on corn grain ethanol because of its outstanding features, including large amounts of fermentable carbohydrates in its juice-rich stalks, drought-tolerance, saline-alkaline resistance but also has considerable potential as food, forage crop owing to the limited availability of arable land. In this review, we have provided a brief overview of the progress that has been made in sweet sorghum industrialization at IMP range from research motivation, breeding, planting scale to products development. A conclusion is drawn that sweet sorghum industry is a systematic project, involving many key points, such as breeding, planting, production process and products sale. From a strategic and sustainability point of view, sweet sorghum is one of the most promising plants, particularly for ethanol, silage and liquor production.
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Behling Neto, Arthur, Rafael Henrique Pereira dos Reis, Luciano Da Silva Cabral, Joadil Gonçalves de Abreu, Daniel De Paula Sousa, Bruno Carneiro Pedreira, Mirceia Angele Mombach, Ernando Balbinot, Perivaldo De Carvalho, and Ana Paula da Silva Carvalho. "Fermentation characteristics of different purpose sorghum silage." Semina: Ciências Agrárias 38, no. 4Supl1 (August 25, 2017): 2607. http://dx.doi.org/10.5433/1679-0359.2017v38n4supl1p2607.

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Sorghum stands out among other plants recommended for ensiling due to its forage composition, its resistance to drought, and its planting range. New cultivars of grain and sweet sorghum that can be used for silage production are available, but there is little information regarding their ensiling characteristics. The aim of this study was to evaluate the fermentation characteristics at the ensiling of different purpose sorghum cultivars, at two crop periods. The trial was carried out at the Plant Production Department of the Federal Institute of Education, Science and Technology of Rondônia, Colorado do Oeste campus, Rondônia, Brazil, and chemical analyses were performed at the Laboratory of Animal Nutrition, at the Federal University of Mato Grosso, Cuiabá campus, Mato Grosso, Brazil. The experimental design used was a randomized block, in split-plot design, with four replicates. The plot treatments consisted of six sorghum cultivars grown for different purposes (grain sorghum: BRS 308 and BRS 310; forage sorghum: BR 655 and BRS 610; sweet sorghum: BRS 506 and CMSXS 647). Split-plot treatments consisted of two cropping seasons (first crop and second crop). The grain sorghum cultivar BRS 310 was the only one that had suitable dry matter content for ensiling; however, it was also the only one that did not show ideal water soluble carbohydrate content for ensiling. Nevertheless, all treatments presented pH below than 4.2 and ammonia nitrogen lower than 12% of total N, which indicates that the fermentation inside the silo had proceeded well. For sweet sorghum cultivars, higher ethanol and butyric acid content were observed for the first crop than for the second crop. All evaluated sorghum cultivars can be used for silage production, but the use of sweet sorghum is recommended at the second crop.
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Behling Neto, Arthur, Rafael Henrique Pereira dos Reis, Luciano Da Silva Cabral, Joadil Gonçalves de Abreu, Daniel De Paula Sousa, Bruno Carneiro Pedreira, Mirceia Angele Mombach, Ernando Balbinot, Perivaldo De Carvalho, and Ana Paula da Silva Carvalho. "Fermentation characteristics of different purpose sorghum silage." Semina: Ciências Agrárias 38, no. 4Supl1 (August 25, 2017): 2607. http://dx.doi.org/10.5433/1679-0359.2017v38n4suplp2607.

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Sorghum stands out among other plants recommended for ensiling due to its forage composition, its resistance to drought, and its planting range. New cultivars of grain and sweet sorghum that can be used for silage production are available, but there is little information regarding their ensiling characteristics. The aim of this study was to evaluate the fermentation characteristics at the ensiling of different purpose sorghum cultivars, at two crop periods. The trial was carried out at the Plant Production Department of the Federal Institute of Education, Science and Technology of Rondônia, Colorado do Oeste campus, Rondônia, Brazil, and chemical analyses were performed at the Laboratory of Animal Nutrition, at the Federal University of Mato Grosso, Cuiabá campus, Mato Grosso, Brazil. The experimental design used was a randomized block, in split-plot design, with four replicates. The plot treatments consisted of six sorghum cultivars grown for different purposes (grain sorghum: BRS 308 and BRS 310; forage sorghum: BR 655 and BRS 610; sweet sorghum: BRS 506 and CMSXS 647). Split-plot treatments consisted of two cropping seasons (first crop and second crop). The grain sorghum cultivar BRS 310 was the only one that had suitable dry matter content for ensiling; however, it was also the only one that did not show ideal water soluble carbohydrate content for ensiling. Nevertheless, all treatments presented pH below than 4.2 and ammonia nitrogen lower than 12% of total N, which indicates that the fermentation inside the silo had proceeded well. For sweet sorghum cultivars, higher ethanol and butyric acid content were observed for the first crop than for the second crop. All evaluated sorghum cultivars can be used for silage production, but the use of sweet sorghum is recommended at the second crop.
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Li, Hongshen, Xinglin Han, Hongrui Liu, Jianqin Hao, Wei Jiang, and Shizhong Li. "Silage Fermentation on Sweet Sorghum Whole Plant for Fen-Flavor Baijiu." Foods 10, no. 7 (June 25, 2021): 1477. http://dx.doi.org/10.3390/foods10071477.

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The technology for producing bioethanol from sweet sorghum stalks by solid-state fermentation has developed rapidly in recent years, and has many similarities with traditional Chinese liquor production. However, the product from sweet sorghum stalks was lacking in volatile flavors, and the level of harmful contents were uncertain, therefore it could not be sold as liquor. In this study, the protein, fat, and tannin in the clusters and leaves of sweet sorghum were utilized to increase the content of flavor compounds in the ethanol product through the anaerobic fermentation of Saccharomyces cerevisiae. Meanwhile, the silage fermentation method was used to extend the preservation time of the raw materials and to further enhance the flavors of Fen-flavor liquor, with ethyl acetate as the characteristic flavor. The effects of different feedstock groups on ethyl acetate, ethyl lactate, methanol, acetaldehyde, acetal, fusel oil, total acid, and total ester were evaluated by analyzing the chemical composition of different parts of sweet sorghum and determined by gas chromatograph. The effect of different fermentation periods on the volatile flavor of sweet sorghum Baijiu was evaluated. The yield of the characteristic volatile flavor was increased by the extension of the fermentation time. Sweet sorghum Baijiu with a high ester content can be used as a flavoring liquor, blended with liquor with a shorter fermentation period to prepare the finished Fen-flavor Baijiu, conforming to the Chinese national standard for sale.
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Taveira, José Henrique Da Silva, Kátia Aparecida De Pinho Costa, Millena De Moura Aquino, Cecília Vieira Da Silva, Wender Ferreira De Souza, Mariana Borges de Castro Dias, Adriana Rodolfo Da Costa, Pedro Rogerio Giongo, and Ayrton Dourado Pereira. "Fermentation Parameters and Quality of Sweet and Biomass Sorghum Silages With Doses of Vinasse." Journal of Agricultural Studies 8, no. 3 (May 12, 2020): 678. http://dx.doi.org/10.5296/jas.v8i3.16823.

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The cultivation of sorghum for silage production has gained more space each year because of its satisfactory nutritional characteristics, resistance to water deficit and adaptability to various types of soil. Thus, the use of sorghum silage has been an alternative for periods of low forage production, providing quality food for ruminants. In this context, the objective was to evaluate the fermentation parameters and quality of sweet and biomass sorghum silages added with doses of vinasse. The experiment was a 2 x 5 factorial completely randomized design with three replications of two sorghum species (sweet and biomass) and five doses of vinasse applied to the soil: 0; 50; 100; 150 and 200 m3 ha-1, totaling 30 experimental silos. For silage, sorghum species were harvested in the 105-day cycle, with 30.5 and 32.3 g kg-1 dry matter, for biomass and sweet sorghum, respectively. The results showed that the biomass sorghum silage showed higher dry mass production. However, the sweet sorghum silage presented a lower buffering capacity, NH3-N, and higher concentration of lactic acid. Doses of vinasse increased the content of crude protein, in vitro digestibility of dry matter and ether extract and reduced fiber fractions in both sorghum species, showing that both species can be used for silage production. Vinasse is a promising alternative to organic fertilizer, since the use of 200 m3 ha-1 positively influenced the fermentation parameters and nutritional value of the sorghum silages.
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Hatamipour, Mohammad Sadegh, Abbas Almodares, Mohsen Ahi, Mohammad Ali Gorji, and Qazaleh Jahanshah. "Performance Evaluation of Sweet Sorghum Juice and Sugarcane Molasses for Ethanol Production." Polish Journal of Chemical Technology 17, no. 3 (September 1, 2015): 13–18. http://dx.doi.org/10.1515/pjct-2015-0043.

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Abstract Sweet sorghum juice and traditional ethanol substrate i.e. sugarcane molasses were used for ethanol production in this work. At the end of the fermentation process, the sweet sorghum juice yielded more ethanol with higher ethanol concentration compared to sugarcane molasses in all experiments. The sweet sorghum juice had higher cell viability at high ethanol concentrations and minimum sugar concentration at the end of the fermentation process. The ethanol concentration and yield were 8.9% w/v and 0.45 g/g for sweet sorghum in 80 h and 6.5% w/v and 0.37 g/g for sugarcane molasses in 60 h, respectively. The findings on the physical properties of sweet sorghum juice revealed that it has better physical properties compared to sugarcane molasses, resulting to enhanced performance of sweet sorghum juice for ethanol production
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Ban, Jingyang, Jianliang Yu, Xu Zhang, and Tianwei Tan. "Ethanol production from sweet sorghum residual." Frontiers of Chemical Engineering in China 2, no. 4 (November 4, 2008): 452–55. http://dx.doi.org/10.1007/s11705-008-0072-6.

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Lombardi, Gabrielle Maria Romeiro, Patricia Cardoso Andrade Navegantes, Carlos Henrique Pereira, Jales Mendes Oliveira Fonseca, Rafael Augusto da Costa Parrella, Fernanda Maria Rodrigues Castro, Mara Jane da Rocha, Daniela Oliveira Ornelas, Adriano Teodoro Bruzi, and José Airton Rodrigues Nunes. "Heterosis in sweet sorghum." Pesquisa Agropecuária Brasileira 53, no. 5 (May 2018): 593–601. http://dx.doi.org/10.1590/s0100-204x2018000500008.

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Abstract: The objective of this work was to evaluate the potential per se of male-sterile and fertility-restorer lines of sweet sorghum (Sorghum bicolor), as well as to detail the heterosis manifested for some traits directly or indirectly related to ethanol production, accumulation rate, and predictability. Evaluations were performed for 20 genotypes, of which 4 are fertility-restorer lines (R), 3 are male-sterile lines (A), and 12 are experimental hybrids (H) resulting from the partial diallel cross between lines A and R, besides a commercial hybrid CV198 used as a check, in four harvest seasons. The experiments were carried out in the municipalities of Lavras and Sete Lagoas, in the state of Minas Gerais, Brazil. The measured traits were plant height, green mass production, juice extraction, total soluble solids content, and megagrams of Brix per hectare. The male-sterile A1 and the fertility-restorer R1 and R3 lines show the best potential per se, considering all traits and their accumulation rate and predictability over harvest times. Heterosis is significant for all traits. The H11, H13, H14, H21, H22, and H33 hybrids are promising because of their better performance per se and higher heterosis.
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Dissertations / Theses on the topic "Sweet sorghum ethanol: Sweet sorghum silage"

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Gerke, Lincoln Villi. "Avaliação do potencial do material de sorgo Sacarino ADV 2010 para produção de etanol e silagem, em dois cortes, na região oeste do Paraná." Universidade Estadual do Oeste do Parana, 2015. http://tede.unioeste.br:8080/tede/handle/tede/758.

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Made available in DSpace on 2017-07-10T15:14:22Z (GMT). No. of bitstreams: 1 DissertacaoLincolnGerke.pdf: 1910648 bytes, checksum: 6358009ffae74f406d3f40ede319052c (MD5) Previous issue date: 2015-02-27
The sorghum was investigated as a food source to replace corn and alternative to sugar cane for ethanol production. Experimental in the State University of Paraná- UNIOESTE West station in Rondon-PR, with the hybrid ADV 2010, which was ensiled and processed with the same equipment already used in the processing of corn and sugarcane, produced a quantity of biomass that exceeded the volume of 165,000 kg of fresh weight per hectare in two sections with an ethanol production of 1,035 liters per hectare in the 1st section and 695 liters per hectare in regrowth, resulting in a cost of R$ 1.26 per liter produced in a rural property. The chemical composition of silage dry matter, acid detergent fiber, neutral detergent fiber, ash and crude protein were relevant in the silage. The results showed that there is viability in producing ethanol from sweet sorghum in rural properties, an additional investment. The economic potential of the material, addition of ethanol and silage extends to the biomass, which can be used for other purposes, and food, can be dried and incorporated into animal feed (fiber) in digesters supply or production steam boilers.
O sorgo sacarino foi investigado como fonte de alimento em substituição ao milho e alternativa à cana de açúcar para a produção de etanol. Na Estação Experimental da Universidade Estadual do Oeste do Paraná-UNIOESTE em Marechal Cândido Rondon-PR, com o híbrido ADV 2010, que foi ensilado e processado com os mesmos equipamentos já usados no processamento de milho e cana, produziu uma quantidade de biomassa que superou o volume de 165.000 kg de massa fresca por hectare em dois cortes, com uma produção de etanol de 1.035 litros por hectare no 1º corte e de 695 litros por hectare no rebrote, resultando num custo de R$ 1,26 por litro produzido em uma propriedade rural. A composição bromatológica da silagem em matéria seca, fibra em detergente ácido, fibra em detergente neutro, matéria mineral e proteína bruta mostraram-se relevantes nas silagens. Os resultados mostraram que há viabilidade em produzir etanol a partir do sorgo sacarino em propriedades rurais, mediante um investimento adicional. O potencial econômico do material, além da produção de etanol e silagem, se estende à biomassa, que pode ser usada para outros fins, além de alimentação, também pode ser secado e incorporado à rações (fibras), em alimentação de biodigestores ou produção de vapor em caldeiras.
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McGinley, Susan. "Sweet Sorghum into Ethanol." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2007. http://hdl.handle.net/10150/622107.

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Mutepe, Rendani Daphney. "Ethanol production from sweet sorghum / Mutepe R.D." Thesis, North-West University, 2012. http://hdl.handle.net/10394/7275.

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The use of fossil fuels contributes to global warming and there is a consequent need to resort to clean and renewable fuels. The major concerns with using agricultural crops for the production of energy are food and water security. Crops that do not threaten food security and that can be cultivated with a relatively low amount of water and produce high yields of fermentable sugars are therefore needed. Sweet sorghum is a fastgrowing crop that can be harvested twice a year and that can produce both food (grain) and energy (sugar juice from stems). Sweet sorghum bagasse can also be utilised for ethanol production. The aim of this study was to determine the sugar content of different sweet sorghum cultivars at different harvest times, and determine the cultivar that will produce the highest ethanol yield at optimized fermentation conditions. Sweet sorghum bagasse was also pretretated, enzymatic hydrolysed and fermented and the best pretreatment method and ethanol yield was determined. In this study, sweet sorghum juice, which mostly consists of readily fermentable sugars (glucose, sucrose and fructose), as well as the bagasse obtained after juice extraction, were converted to bio–ethanol. Sweet sorghum juice was fermented to ethanol using Saccharomyces cereviciae without any prior pretreatment. The effect of pH (4–6), yeast concentration (1–5g.L–1), initial sugar concentration (110–440g.L–1) and the addition of a nitrogen source (urea, ammonium sulphate, yeast extract and peptone) on the ethanol yield was investigated. The pretreatment of bagasse using sulphuric acid (3wt %), and calcium hydroxide (0.2g/g bagasse), followed by enzymatic hydrolysis using Celluclast 1.5L (0.25g/g bagasse), Novozyme 188 (0.24g/g bagasse) and Tween 80(1.25g.L–1) were adapted from Mabentsela (2010). Fermentation was done using Saccharomyces cerevisiae, but it was unable to ferment the xylose sugar. The results show that the USA 1 cultivar contains the highest sugar content at 3 months. An ethanol and glycerol yield of 0.48g.g–1 and 0.05g.g–1 was observed respectively at a pH of 4.5, a yeast concentration of 3wt%, initial sugar concentration of 440g.L–1 and when ammonium sulphate was added to the fermentation broth as nitrogen source. The glycerol yield formed as a by–product during fermentation and at a maximum ethanol yield was 0.05g.g–1. The glucose yield obtained from sulphuric acid, base and ultrasonic wave pretreatment was 0.79g.g–1, 0.62g.g–1 and 0.62g.g–1 respectively. The glucose yield obtained after each type of pretreatment was higher than that obtained for unpretreated bagasse, which was 0.55g.g–1. Base pretreatment, ultrasonic wave pretreatment and unpretreated bagasse also contained fructose at the end of enzymatic hydrolysis. Base, sulphuric acid pretreatment disrupted the crystal structure of cellulose and increased the available surface, and therefore cellulose was easily accessible for enzymatic hydrolysis. Ultrasonic wave pretreatment showed potential in increasing the surface area for enzymatic hydrolysis but further investigations need to be done. From bagasse fermentation, 0.45g.g–1 – 0.39g.g–1 of ethanol per g of available fermentable sugar was obtained.
Thesis (M.Sc. Engineering Sciences (Chemical Engineering))--North-West University, Potchefstroom Campus, 2012.
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Appiah-Nkansah, Nana Baah. "Full utilization of sweet sorghum for biofuel production." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/34623.

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Doctor of Philosophy
Department of Biological & Agricultural Engineering
Donghai Wang
Sweet sorghum accumulates high concentrations of fermentable sugars in the stem, produces significant amount of starch in the grain (panicle) and has shown to be a promising energy feedstock. Sweet sorghum has a short growing season so adding it to the sugar cane system would be good. The overall goal of this dissertation is to enhance the attractiveness of biofuel production from sweet sorghum to fully utilize fermentable sugars in the juice, starch in the panicle and structural carbohydrates in the stalk for high efficiency and low-cost ethanol production. Sweet sorghum juice was incorporated into the dry-grind process which increased ethanol yield by 28% increase of ethanol yield compared to the conventional ethanol method and decreased enzymatic hydrolysis time by 30 minutes. A very high gravity fermentation technique was applied using sweet sorghum juice and sorghum grain yielded 20.25% (v/v) of ethanol and 96% fermentation efficiency. Response surface methodology was applied in order to optimize diffusion conditions and to explore effects of diffusion time, diffusion temperature, and ratio of sweet sorghum biomass to grain on starch-to-sugar efficiency and total sugar recovery from sweet sorghum. Starch hydrolysis efficiency and sugar recovery efficiency of 96 and 98.5% were achieved, respectively, at an optimized diffusion condition of 115 minutes, 95 °C, and 22% grain loading. Extraction kinetics based on the optimized diffusion parameters were developed to describe the mass transfer of sugars in sweet sorghum biomass during the diffusion process. Ethanol obtained from fermented extracted sugars treated with granular starch hydrolyzing enzyme and those with traditional enzymes were comparable (14.5 – 14.6% v/v). Ethanol efficiencies also ranged from 88.92 –92.02%.
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Jia, Fei, Jeerwan Chawhuaymak, Mark Riley, Werner Zimmt, and Kimberly Ogden. "Efficient extraction method to collect sugar from sweet sorghum." BioMed Central, 2013. http://hdl.handle.net/10150/610172.

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BACKGROUND:Sweet sorghum is a domesticated grass containing a sugar-rich juice that can be readily utilized for ethanol production. Most of the sugar is stored inside the cells of the stalk tissue and can be difficult to release, a necessary step before conventional fermentation. While this crop holds much promise as an arid land sugar source for biofuel production, a number of challenges must be overcome. One lies in the inherent labile nature of the sugars in the stalks leading to a short usable storage time. Also, collection of sugars from the sweet sorghum stalks is usually accomplished by mechanical squeezing, but generally does not collect all of the available sugars.RESULTS:In this paper, we present two methods that address these challenges for utilization of sweet sorghum for biofuel production. The first method demonstrates a means to store sweet sorghum stalks in the field under semi-arid conditions. The second provides an efficient water extraction method that can collect as much of the available sugar as feasible. Operating parameters investigated include temperature, stalk size, and solid-liquid ratio that impact both the rate of sugar release and the maximal amount recovered with a goal of low water use. The most desirable conditions include 30degreesC, 0.6 ratio of solid to liquid (w/w), which collects 90 % of the available sugar. Variations in extraction methods did not alter the efficiency of the eventual ethanol fermentation.CONCLUSIONS:The water extraction method has the potential to be used for sugar extraction from both fresh sweet sorghum stalks and dried ones. When combined with current sugar extraction methods, the overall ethanol production efficiency would increase compared to current field practices.
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Ottman, Michael. "Feasibility of Obtaining Two Crops of Sweet Sorghum for Ethanol, MAC, 2006." College of Agriculture, University of Arizona (Tucson, AZ), 2008. http://hdl.handle.net/10150/203655.

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Sweet sorghum has potential as an energy crop in the Southwest since, compared to corn, it requires less fertilizer and water, is cheaper to grow, and requires less energy to process into ethanol. The purpose of this study is to determine the feasibility of obtaining two crops of sweet sorghum from a single seeding. Two cultivars of sweet sorghum were seeded at early and late dates at the Maricopa Agricultural Center in 2006. Two crops of sweet sorghum were obtained in our study with a short season cultivar Bundle King, but not with the longer season cultivar MMR 327/36. The ethanol yield of Bundle King of 213 gal/acre from two crops planted on April 7 was not significantly greater statistically than the ethanol yield of 162 gal/acre from a single crop planted on June 1. Bundle King is an inherently low yielding variety, as are most short season sweet sorghum cultivars that may be used for double cropping. Thus, the problem with double cropping is identifying a suitable cultivar along with increased harvest costs, despite the advantage of providing a more even supply of feedstock to an ethanol plant.
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Waters, Heather. "Converting Sweet Sorghum to Ethanol - An Alternative Feedstock for Renewable Fuels." Thesis, The University of Arizona, 2012. http://hdl.handle.net/10150/271930.

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The goal of this project was to design an ethanol production process from sweet sorghum for use as a renewable fuel. Sorghum stalks are first harvested and sent through a series of 2 three-roller extractors (70% total efficiency). Extracted juice is pumped to the reactor for preservation and fermentation. Sodium metabisulfite preserves the juice. Ethanol Red (Saccharomyces cerevisiae) is the fermentation yeast. Following fermentation, the juice (8% ethanol by mass) is distilled to achieve 90% ethanol. A molecular sieve extracts excess water, resulting in 100% ethanol. Plant wastes accumulate during the process. These wastes are collected, dried, and sold as animal feed for profit. The project economics indicate that the overall process is not currently economically feasible. The net present value (NPV) for the optimum economic situation, assuming a 15 year plant lifetime and 15% interest rate, is -$125 M. Under these circumstances, the ethanol would need to be sold at $44.37 per gallon to break even. To improve this process, further development of methods for increasing juice extraction efficiency should be explored. Additionally, the distillation process could be enhanced with a second distillation column to achieve 95% ethanol prior to using the molecular sieve.
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Morris, Brittany Danielle. "Economic feasibility of ethanol production from sweet sorghum juice in Texas." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2313.

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Worley, John Wright. "A systems analysis of sweet sorghum harvest for a Piedmont ethanol industry." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-07282008-135608/.

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Rojas, Ortúzar Ilse. "Bioconversion Of Lignocellulosic Components Of Sweet Sorghum Bagasse Into Fermentable Sugars." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/555836.

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The utilization of lignocellulosic residues to produce renewable energy is an interesting alternative to meet the increasing demand of fuels while at the same time reducing greenhouse gas emissions and climate change. Sweet sorghum bagasse is a lignocellulosic residue composed mainly of cellulose, hemicellulose, and lignin; and it is a promising substrate for ethanol production because its complex carbohydrates may be hydrolyzed and converted into simple sugars, and then fermented into ethanol. However, the utilization of lignocellulosic residues is difficult and inefficient. Lignocellulose is a very stable and compact complex structure, which is linked by β-1,4 and β-1,3 glycosidic bonds. Furthermore, the crystalline and amorphous features of cellulose fibers and the presence of hemicellulose and lignin make the conversion of lignocellulose into fermentable sugars currently impractical at commercial scale. The bioconversion of lignocellulose in nature is performed by microorganisms such as fungi and bacteria, which produce enzymes that are able to degrade lignocellulose. The present study evaluated the bioconversion of lignocellulosic residues of sweet sorghum into simple sugars using filamentous fungi directly in the hydrolysis of the substrate, without prior isolation of the enzymes. The fungus Neurospora crassa and some wild fungi (that grew naturally on sweet sorghum bagasse) were used in this investigation. The effect of the fungi on substrate degradation and the sugars released after hydrolysis were evaluated, and then compared with standard hydrolysis performed by commercial enzymes (isolated cellulases). In addition, different combinations of fungi and enzymes were used to determine the best approach. The main goal was to verify if the fungi were able to attack and break down the lignocellulose structure directly and at a reasonable rate, rather than by the current method utilizing isolated enzymes. The main finding of this study was that the fungi (N. crassa and wild fungi) were able to degrade sweet sorghum bagasse directly; however, in all of the cases, the hydrolysis process was not efficient because the hydrolysis rate was much lower than the enzymatic hydrolysis rate. Hydrolysis using a combination of fungus and commercial enzymes was a good approach, but still not efficient enough for practical use. The best results of combined hydrolysis were obtained when the substrate was under the fungus attack for three days and then, commercial enzymes with low enzymatic activity (7 FPU/g and 25 CBU/g) were added to the solution. These enzymes represent 10% of the current enzymatic activity recommended per gram of substrate. This process reached reasonable levels of sugars (close to 85% of sugars yield obtained by enzymatic hydrolysis); however, the conversion rate was still slower, making the process impractical and more expensive since it took twice the amount of time as commercial enzymes. Furthermore, the wild fungi able to degrade cellulose were isolated, screened, and identified. Two of them belong to the genus Aspergillus, one to the genus Acremonium, and one to the genus Rhizopus. Small concentration of spores-0.5mL- (see Table 4, CHAPTER III- for specific number of spores per mL) did not show any sugar released during hydrolysis of sweet sorghum bagasse. However, when the concentration of spores was increased (to 5mL and 10mL of solution), citric acid production was detected. This finding indicates that those wild fungi were able to degrade lignocellulose, even though no simple sugars were measured, citric acid production is an indicator of fungi growing and utilization of lignocellulose as nutrient. It is assumed that the fungi consume the sugars at the same time they are released, thus they are not detected. The maximum concentration of citric acid (~14.50 mg/mL) was achieved between days 8-11 of hydrolysis. On the other hand, before using lignocellulose, the substrate needed to be pretreated in order to facilitate its decomposition and subsequent hydrolysis. Sweet sorghum bagasse was washed three times to remove any soluble sugars remaining after the juice was extracted from the stalks. Then, another finding of this study was that the first wash solution could be used for ethanol production since the amount of sugars present in it was close to 13°Brix. The ethanol yield after 48 hours of fermentation was in average 6.82mg/mL, which is close to the theoretical ethanol yield. The other two washes were too dilute for commercial ethanol production. In terms of pretreatments, the best one to break down sweet sorghum bagasse was 2% (w/v) NaOH. This pretreatment shows the highest amounts of glucose and xylose released after hydrolysis. Unwashed and untreated bagasse (raw bagasse) did not show any sugar released. In terms of ethanol, 74.50% of the theoretical yield was reached by enzymatic hydrolysis, while 1.10% was reached by hydrolysis using the fungus N. crassa. Finally, it is important to remark that further investigation is needed to improve the direct conversion of lignocellulose into fermentable sugars by fungal enzymes. This approach is a promising technology that needs to be developed and improved to make it efficient and feasible at commercial scale.
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Books on the topic "Sweet sorghum ethanol: Sweet sorghum silage"

1

Reddy, Belum V. S. Developing a sweet sorghum ethanol value chain. Patancheru: International Crops Research Institute for the Semi-Arid Tropics, 2013.

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(Editor), Giuliano Grassi, and Alberto Douglas Scolti (Illustrator), eds. ECHI-T Large Bio-ethanol Project from Sweet Sorghum in P.R. China and Italy. ETA, Florence, Italy, 2002.

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Book chapters on the topic "Sweet sorghum ethanol: Sweet sorghum silage"

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Muryanto and Ajeng Arum Sari. "Pretreatment of Sweet Sorghum Bagasse Using EFB-Based Black Liquor for Ethanol Production." In Sustainable Future for Human Security, 85–95. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5430-3_8.

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Rains, Glen C., and John W. Worley. "Sweet Sorghum: Applications in Ethanol Production." In Encyclopedia of Plant and Crop Science, 1201–3. CRC Press, 2004. http://dx.doi.org/10.1081/e-epcs-120010427.

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Rajvanshi, Anil K., and Rajiv Jorapur. "Pilot Plant for Solar Distillation of Ethanol from Sweet Sorghum Feedstock." In Advances In Solar Energy Technology, 2252–58. Elsevier, 1988. http://dx.doi.org/10.1016/b978-0-08-034315-0.50419-5.

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Xuan, Tran Dang, Nguyen Thi Phuong, and Tran Dang Khanh. "Effects of Fertilizers on Biomass, Sugar Content and Ethanol Production of Sweet Sorghum." In Biomass Volume Estimation and Valorization for Energy. InTech, 2017. http://dx.doi.org/10.5772/66814.

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M. Gatdula, Kristel, Rex B. Demafelis, and Butch G. Bataller. "Comparative Analysis of Bioethanol Production from Different Potential Biomass Sources in the Philippines." In Bioethanol Technologies. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.94357.

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To pursue the continuous implementation of the bioethanol blending mandate by the Philippine Biofuels Law, part of the roadmap of the National Biofuels Board (NBB) through the Department of Energy (DOE) is to find a sustainable feedstock. This is due to the deficit in locally produced bioethanol as there is an insufficient supply of currently used feedstock, sugarcane. There are several biomasses available in the country with components viable for ethanol fermentation. Aside from sugarcane, these include sweet sorghum and cassava (first-generation), rice straw and corn stover (second-generation), and macroalgae (third-generation). Among which, sweet sorghum can be considered as the best complementary feedstock to sugarcane as its syrup can be directly fermented to produce bioethanol. Considering its maximum bioethanol potential yield of 100 L/ton for two croppings annually, a comparably low production cost of PhP 36.00/L bioethanol was estimated, competitive enough with the PhP33.43/L bioethanol from sugarcane. Aside from finding a promising feedstock, the bioethanol production volume in the country must be increased to meet the demand through either working on the optimum processing conditions to increase the capacity utilization from the current 77.9% or through installation of additional distilleries.
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MEEKERS, E., P. OTTE, C. SCHEUREN, J. CHAPELLE, and J.-C. H. JACQUEMIN. "PROJECT OF A DEMONSTRATION UNIT FOR ETHANOL PRODUCTION FROM SWEET SORGHUM AND SUGAR BEET IN WALLONIA." In Biomass for Energy and the Environment, 1551–54. Elsevier, 1996. http://dx.doi.org/10.1016/b978-0-08-042849-9.50018-5.

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Conference papers on the topic "Sweet sorghum ethanol: Sweet sorghum silage"

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Tahmina Imam and Sergio Capareda. "Ethanol Fermentation from Sweet Sorghum Juice." In 2010 Pittsburgh, Pennsylvania, June 20 - June 23, 2010. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2010. http://dx.doi.org/10.13031/2013.29982.

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Dimple Kundiyana, Danielle Bellmer, Raymond Huhnke, and Mark Wilkins. ""Sorganol": Production of Ethanol from Sweet Sorghum." In 2006 Portland, Oregon, July 9-12, 2006. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2006. http://dx.doi.org/10.13031/2013.21449.

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Ajit K Mahapatra, Mark Latimore, Danielle D Bellmer, and Bharat P Singh. "Utilization of Sweet Sorghum for Ethanol Production- A Review." In 2011 Louisville, Kentucky, August 7 - August 10, 2011. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2011. http://dx.doi.org/10.13031/2013.38984.

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Thanapimmetha, Anusith, Korsuk Vuttibunchon, Maythee Saisriyoot, and Penjit Srinophakun. "Chemical and Microbial Hydrolysis of Sweet Sorghum Bagasse for Ethanol Production." In World Renewable Energy Congress – Sweden, 8–13 May, 2011, Linköping, Sweden. Linköping University Electronic Press, 2011. http://dx.doi.org/10.3384/ecp11057389.

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Yu, John Luis, and Edwin N. Quiros. "Performance Characteristics of Philippine Hydrous Ethanol-Gasoline Blends: Preliminary Findings." In ASME 2019 13th International Conference on Energy Sustainability collocated with the ASME 2019 Heat Transfer Summer Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/es2019-3824.

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Abstract To reduce dependence on imported fossil fuels and develop indigenous biofuels, the Philippines enacted the Biofuels Act of 2006 which currently mandates a 10% by volume blend of 99.6% anhydrous bio-ethanol for commercially sold Unleaded and Premium gasolines. To urge a regulation review of the anhydrous requirement and examine the suitability for automotive use of hydrous bioethanol (HBE) blends, preliminary engine dynamometer tests at 1400–4400 rpm were conducted to measure specific fuel consumption (SFC) and power. In this study, HBE (95 % ethanol and 5% water by volume) produced from sweet sorghum using a locally-developed process, was blended volumetrically with three base gasoline fuels — Neat, Unleaded, and Premium. The four HBE blends tested were 10% and 20% with Neat gasoline, 20% with Unleaded gasoline, and 20% with Premium gasoline. For blends with Neat gasoline, the SFC of the 10%HBE blend was comparable with to slightly higher than Neat gasoline. The SFC of the 20%HBE blend was comparable with Neat gasoline up to 2800 rpm and lower beyond this speed thus being better overall than the 10%HBE blend. Compared to their respective commercial base fuels, the HBE-Unleaded blend showed lower SFC while the HBE-Premium blend yielded slightly higher SFC over most of the engine speed range. Between commercial fuel blends, the HBE-Unleaded blend gave better SFC than the HBE-Premium blend. Power was practically similar for the fuels tested. No engine operational problems and fuel blend phase separation were encountered during the tests. This preliminary study indicated the suitability of and possible optimum hydrous bio-ethanol blends for automotive use under Philippine conditions.
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