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| Oda, Y; Nakamura, K; Shinomiya, N; Ohba, K; 小田, 有二. |
| Kluyveromyces marxianus KD-15, called flex yeast, is a strain that is insensitive to catabolite repression and has the capacity to produce ethanol efficiently from a mixture of beet molasses and whey powder. When a fermentation test was conducted in 50 mL of a medium containing 200 mg mL-1 of sugar as sugar beet thick juice diluted with an arbitrary amount of crude whey, strain KD-15 produced over 99 mg mL-1 ethanol in all the media tested, and ethanol formation decreased in proportion to the volume of whey by K. marxianus NBRC 1963, the parental strain of KD-15, and Saccharomyces cerevisiae NBRC 0224, the reference strain for conventional ethanol production. Fermentation of thick juice diluted with whey alone by strain KD-15 at 30 °C initially proceeded... |
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Palavras-chave: Ethanol production; Flex yeast; Kluyveromyces marxianus; Beta vulgaris; Cheese whey. |
| Ano: 2010 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3143 |
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| Mendonca, Marco Aurelio Alves de; Freitas, Rogerio Edivaldo; Santos, Amaro Olimpio Pereira Dos; Pereira, Andre Santos; Costa, Ricardo Cunha Da. |
| O PROALCOOL é conhecido internacionalmente com o programa mais bem sucedido de promoção de biocombustíveis. A análise da eficácia de tal programa é fundamental para formulação de políticas públicas, não somente na área de energia, mas em todos os setores da economia. Com este objetivo, o artigo utilizou a metodologia das curvas de aprendizagem para avaliar o PROALCOOL e mostrar o esforço necessário, em termos de investimentos, para o seu avanço.----------------------PROALCOOL is known internationally as the most successful biofuel promotion program. Prior analysis of the effectiveness of such a program is fundamental to formulation of public policy, not only in the area of energy, but in all sectors of the economy. The article applies learning curve... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Produção de álcool; Promoção de biocombustíveis; Curva de aprendizagem; Ethanol production; Promotion of biofuels; Learning curves; Resource /Energy Economics and Policy. |
| Ano: 2008 |
URL: http://purl.umn.edu/108140 |
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| Almas, Lal K.; Lust, David G.; Brooks, Kathleen R.; Girase, J.R.. |
| The potential of three feedstocks: grain sorghum, sweet sorghum, and switchgrass for ethanol production in the top 26 counties of the Texas Panhandle Region is analyzed using yield and production costs of feedstock, processing cost of feedstock, final demand for ethanol, farm to wholesale marketing margin, and the derived demand price of feedstock. The calculated economic returns per acre of grain sorghum, sweet sorghum, and switchgrass are -$45.37, -$410.19, and -$150.17 respectively under irrigated condition and -$38.25, -$145.09, and -$29.04 respectively under dryland condition. The evaluation in this study demonstrates that ethanol production from grain sorghum, sweet sorghum, and switchgrass in the Texas Panhandle Region is not economically... |
| Tipo: Presentation |
Palavras-chave: Ethanol production; Texas Panhandle; Grain sorghum; Sweet sorghum; And Switchgrass; Feedstock; Crop Production/Industries; Production Economics; Resource /Energy Economics and Policy; Q16; Q25; Q27; And Q42. |
| Ano: 2012 |
URL: http://purl.umn.edu/119723 |
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| Susanto, Dwi; Rosson, C. Parr, III; Hudson, Darren. |
| This study analyzes the potential impacts of expanded ethanol production on southern agriculture. Results of regression analysis suggest that acreage planted for field crops (corn, cotton, soybeans, and wheat) is inelastic with respect to relative prices. The results provide statistical evidence of potential significant acreage shifts favoring corn over cotton, soybeans, and wheat. Simulations indicate that higher corn prices will increase corn acreage, but the South continues to be a deficit corn region. U.S. corn production is capable of supplying domestic demand for ethanol, feed for livestock and poultry, and other uses, while maintaining exports at more than 2 billion bushels annually. |
| Tipo: Journal Article |
Palavras-chave: Acreage shifts; Corn exports; Ethanol production; Southern agriculture; Agribusiness; Environmental Economics and Policy; Production Economics; Research and Development/Tech Change/Emerging Technologies; Q11; Q42. |
| Ano: 2008 |
URL: http://purl.umn.edu/47200 |
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| Tokgoz, Simla; Elobeid, Amani E.; Fabiosa, Jacinto F.; Hayes, Dermot J.; Babcock, Bruce A.; Yu, Tun-Hsiang (Edward); Dong, Fengxia; Hart, Chad E.; Beghin, John C.. |
| Projections of U.S. ethanol production and its impacts on planted acreage, crop prices, livestock production and prices, trade, and retail food costs are presented under the assumption that current tax credits and trade policies are maintained. The projections were made using a multi-product, multi-country deterministic partial equilibrium model. The impacts of higher oil prices, a drought combined with an ethanol mandate, and removal of land from the Conservation Reserve Program (CRP) relative to baseline projections are also presented. The results indicate that expanded U.S. ethanol production will cause long-run crop prices to increase. In response to higher feed costs, livestock farmgate prices will increase enough to cover the feed cost increases.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Biofuels; Corn acreage; Crop prices; Ethanol production; Food prices; Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/9811 |
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| Lambert, Dayton M.; Wilcox, Michael D.; English, Alicia; Stewart, Lance A.. |
| The location of ethanol plants is determined by infrastructure, product and input markets, fiscal attributes of local communities, and state and federal incentives. This empirical analysis uses probit regression along with spatial clustering methods to analyze investment activity of ethanol plants at the county level for the lower U.S. 48 states from 2000 to 2007. The availability of feedstock dominates the site selection decision. Other factors, such as access to navigable rivers or railroads, product markets, producer credit and excise tax exemptions, and methyl tertiary-butyl ether bans provided some counties with a comparative advantage in attracting ethanol plants. |
| Tipo: Journal Article |
Palavras-chave: Cluster analysis; Comparative advantage; Ethanol production; Location model; Community/Rural/Urban Development; Environmental Economics and Policy; Political Economy; R1; R3. |
| Ano: 2008 |
URL: http://purl.umn.edu/45511 |
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| Ravaneli,Gisele Cristina; Madaleno,Leonardo Lucas; Presotti,Leandro Eduardo; Mutton,Miguel Angelo; Mutton,Márcia Justino Rossini. |
| The spittlebug (Mahanarva fimbriolata) has become a key pest of the sugarcane crop in Brazil with the increase of green-cane harvesting, causing stalk yield and cane quality losses. This research was undertaken to evaluate the effects of the spittlebug (Mahanarva fimbriolata) on cane quality and juice fermentation. The experiment was arranged in a completely randomized 5 × 2 factorial design, with five spittlebug infestation levels (0-0.5; 0.6-2.5; 2.6-5; 5.1-8; 8.1-12.5 nymphs m-1), controlled or not with thiamethoxam (0.2 kg of active ingredient ha-1). To conduct fermentation, Saccharomyces cerevisiae (fresh and pressed baker's yeast) was inoculated to musts at a concentration of 30 g L-1. Microbiological analyses were performed at the beginning, middle... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharum spp.; Mahanarva fimbriolata; Fermentation process; Ethanol production. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000600004 |
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| Cantos-Lopes,Amanda; Vilela-de Resende,Juliano Tadeu; Machado,José; Perez-Guerra,Edson; Vilela-Resende,Nathalia. |
| Abstract Ethanol is one of the most promising fuels in Brazil, but its production is centralized in sugarcane cultivation, and is currently in search for other sources alcohol producing biomass to replace sugarcane monoculture. The aim of this study was to study fermentation process variables such as fermentation time (72 and 96 hours), addition of nutrients (with and without addition) and yeasts (dry and fresh organic yeast), employed in ethanol production from two sweet potato (Ipomoea batatas (L.) Lam.) genotypes: UGA 05 and UGA 77. Alcohol evaluation content in °GL was performed in a completely randomized design according to two factorial schemes (22 and 23), and results obtained were analyzed using Design Expert® software version 8. Results of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofuel; Ethanol production; Fermentation; Saccharification; Starch; Water content. |
| Ano: 2018 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000200231 |
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