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| Registros recuperados: 34 | |
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| Lee, Young-Jae; Kennedy, P. Lynn. |
| This study analyzes the historical price response of individual crop acreage in order to determine the impacts of an expansionist policy in bioethanol production on the U.S. agricultural industry. In doing this, this study provides an economic foundation by using a traditional Rotterdam model to simulate a cropland demand system. Within the developed framework, this study estimates own and cross acreage elasticities and scale elasticities to show the impacts of acreage values on crop production and the relationship between total cropland and individual crop acreage. This study found that rice farming is most inelastic to own acreage value. Soybeans, hay, and wheat are shown to be good substitute crops for corn. Corn, soybeans, hay, wheat, cotton, barley,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Bioethanol; Acreage value; Rotterdam model; Own acreage elasticity; Cross acreage elasticity; Scale elasticity; Crop Production/Industries; Resource /Energy Economics and Policy. |
| Ano: 2008 |
URL: http://purl.umn.edu/6343 |
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| Lee, Duu-Hwa; Lin, Hsin-Chun; Chang, Ching-Cheng; Hsu, Shih-Hsun. |
| This article figures out the economic impacts on macroeconomy, industrial output, new energies and environment when the advantageous bioethanol and its feedstock production increase and replace the usage of gasoline in the future. A CGE model, called ¡§Taiwan General Equilibrium Model-Energy, (TAIGEM-E), was a linear/dynamic, linearized percentage change simulation tool used especially in the economic evaluation of environment policies. Results indicated that macroeconomic and environmental variables will all benefit with scenarios. Government should instantly encourage the production of bioethanol (and biodiesel) and it¡¦s producing resource because it truly can reduce the pressure of CO2 emission mitigation, and also can active agricultural fallow lands.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Bioethanol; Biodiesel; Computal General Equilibrium (CGE); TAIGEM-E; Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/9902 |
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| Cabral,Mirelle Márcio Santos; Abud,Ana Karla de Souza; Silva,Carlos Eduardo de Farias; Almeida,Renata Maria Rosas Garcia. |
| ABSTRACT: Population growth and the increasing search for healthy foods have led to a major consumption of coconut water and, hence, to an environmental impact caused by the inappropriate disposal of green coconut husks. This lignocellulosic biomass has deserved attention of researchers concerning the seeking of new usages, as, for example, in renewable fuels production technologies. This study examines the potential of green coconut husk fibers as a feedstock for the production of bioethanol. The coconut fibers were pretreated through an alkaline method, hydrolyzed enzymatically and submitted to ethanol fermentation with commercial yeasts of Saccharomyces cerevisiae. Despite the significant loss of cellulose (4.42% in relation to the fiber and 17.9%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reuse; Coconut husk; Fermentation; Bioethanol. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001872 |
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| Acharya,Somen; Chaudhary,Anita. |
| Most of the potential bioprospecting is currently related to the study of the extremophiles and their potential use in industrial processes. Recently microbial cellulases find applications in various industries and constitute a major group of industrial enzymes. Considerable amount of work has been done on microbial cellulases, especially with resurgence of interest in biomass ethanol production employing cellulases and use of cellulases in textile and paper industry. Most efficient method of lignocellulosic biomass hydrolysis is through enzymatic saccharification using cellulases. Significant information has also been gained about the physiology of thermophilic cellulases producers and process development for enzyme production and biomass... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lignocelluloses; Bioethanol; Cellulase; Thermophiles. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300001 |
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| Spyridon,Achinas; Willem Euverink,Gerrit Jan. |
| Bioethanol production is one pathway for crude oil reduction and environmental compliance. Bioethanol can be used as fuel with significant characteristics like high octane number, low cetane number and high heat of vaporization. Its main drawbacks are the corrosiveness, low flame luminosity, lower vapor pressure, miscibility with water, and toxicity to ecosystems. One crucial problem with bioethanol fuel is the availability of raw materials. The supply of feedstocks for bioethanol production can vary season to season and depends on geographic locations. Lignocellulosic biomass, such as forest-based woody materials, agricultural residues and municipal waste, is prominent feedstock for bioethanol cause of its high availability and low cost, even though the... |
| Tipo: Journal article |
Palavras-chave: Bioconversion; Bioethanol; Fermentation; Hydrolysis; Renewable fuels. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000500009 |
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| Dalla Marta, Anna; DIPSA-University of Firenze; anna.dallamarta@unifi.it; Natali, Francesca; DIPSA-University of Firenze;; Mancini, Marco; DIPSA-University of Firenze;; Ferrise, Roberto; DIPSA-University of Firenze;; Bindi, Marco; DIPSA-University of Firenze;; Orlandini, Simone; DIPSA-University of Firenze;. |
| The contribution of agrobiomasses, as a source of energy, to the reduction of greenhouse gas emissions was confirmed by several studies. Biomass from agriculture represents one of the larger and more diverse sources to exploit and in particular ethanol and diesel have the potential to be a sustainable replacement for fossil fuels, mainly for transport purposes. However, the cultivation of energy crops dedicated to the production of biofuels presents some potential problems, e.g., competitiveness with food crops, water needs, use of fertilizers, etc., and the economic, energy, and environmental convenience of such activity depends on accurate evaluations about the global efficiency of the production system. In this study, the processes related to the... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Agroenergy; Bioethanol; Energy balance; Pure vegetable oil; Water balance. |
| Ano: 2011 |
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| Mascarenhas Santos, Maria do Socorro; Silva, Cesar José da; Cruz, Sandra Helena da; Batistote, Margareth; Cardoso, Claudia Andrea Lima. |
| Energy cultures are emerging as viable renewable energy sources because they satisfy sustainability requirements. The present study involves a survey regarding the technological characteristics for sugarcane and sweet sorghum energy crops, in addition to their potential for bioethanol production. An exploratory survey was conducted regarding the agronomic and technological characteristics of cane and sorghum. Pre-inmates were produced with YPSAC 5% liquid medium, sterilized and 0.10 grams of yeasts FT858 and Pedra-2 were inoculated and incubated at 30 °C for 10 h at 250 rpm. After the production, the cells were recovered by centrifugation, at 105 rpm, resulting in a 10 mg mg-1 concentration of moist dough. This dough was subsequently inoculated in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomass; Saccharomyces cerevisiae; Bioethanol. |
| Ano: 2022 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6719 |
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| Revin,Victor; Atykyan,Nelli; Zakharkin,Denis. |
| Background: A study of the correlation between the particle size of lignocellulosic substrates and ultrasound pretreatment on the efficiency of further enzymatic hydrolysis and fermentation to ethanol. Results: The maximum concentrations of glucose and, to a lesser extent, di- and trisaccharides were obtained in a series of experiments with 48-h enzymatic hydrolysis of pine raw materials ground at 380-100 rpm for 30 min. The highest glucose yield was observed at the end of the hydrolysis with a cellulase dosage of 10 mg of protein (204 ±21 units CMCase per g of sawdust). The greatest enzymatic hydrolysis efficiency was observed in a sample that combined two-stage grinding at 400 rpm with ultrasonic treatment for 5-10 min at a power of 10 W per kg of... |
| Tipo: Journal article |
Palavras-chave: Bioethanol; Ligsnocelluloses; Yeast Saccharomyces cerevisiae. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000200003 |
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| Salehi, Rouhollah; Taghizadeh-Alisaraei, Ahmad; Jahanbakhshi, Ahmad; Shahidi, Fakhri. |
| As the world progresses, more energy is required to get along with everyday changes. Using bio-ethanol as one of the most important bio-fuels is an appropriate response to those changes. Much agricultural waste is being produced in Iran and the combination of such waste can turn it into a good source for the production of bio-ethanol. Thus, in this study, the amount of bioethanol extracted from melon waste was measured and evaluated. To do so, considering the 15 kg capacity of the device's fermenter, 12 kg of refined melon sugar syrup and three kilograms of water (with the standard ratio of 4 to 1), i.e. a total of 15 kg of substrate with the brix degree of 20, as well as 75 gr of saccharomyces cervisiae yeast, cultured in standard conditions (5 grams of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioethanol; Melon waste; Fermenter; Saccharomyces cervisiae; Fermentation. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4821 |
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| Li,Yun-Cheng; Gou,Zi-Xi; Zhang,Ying; Xia,Zi-Yuan; Tang,Yue-Qin; Kida,Kenji. |
| ABSTRACT Lignocellulose-derived inhibitors have negative effects on the ethanol fermentation capacity of Saccharomyces cerevisiae. In this study, the effects of eight typical inhibitors, including weak acids, furans, and phenols, on glucose and xylose co-fermentation of the recombinant xylose-fermenting flocculating industrial S. cerevisiae strain NAPX37 were evaluated by batch fermentation. Inhibition on glucose fermentation, not that on xylose fermentation, correlated with delayed cell growth. The weak acids and the phenols showed additive effects. The effect of inhibitors on glucose fermentation was as follows (from strongest to weakest): vanillin > phenol > syringaldehyde > 5-HMF > furfural > levulinic acid > acetic acid > formic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Industrial Saccharomyces cerevisiae; Bioethanol; Glucose and xylose co-fermentation; Inhibitor tolerance. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000400791 |
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| Registros recuperados: 34 | |
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