نتایج جستجو برای: ethanol production

تعداد نتایج: 701898  

2005
Kent D. Rausch Ronald L. Belyea

Increase in demand for ethanol as a fuel additive has resulted in dramatic growth in ethanol production. Ethanol is produced from corn by wet milling or dry grind processing. Wet mill plants are capital intensive due to equipment requirements; they produce large volumes of ethanol and are corporate owned. In dry grind processing, the kernel is not fractionated and only one coproduct, distillers...

2012
Dermot Hayes Christopher Knittel Aaron Smith Xiaodong Du

Introduction In a recent working paper, Christopher Knittel and Aaron Smith attack our paper on “The impact of ethanol production on US and regional gasoline markets relating ethanol production to gasoline prices" as published in 2009 in Energy Policy. Our work found that as ethanol production increased, the price of gasoline fell relative to the price of crude oil. Knittel and Smith (K and S) ...

2014
Hong-Zhang Chen Zhi-Hua Liu Shu-Hua Dai

BACKGROUND Bioethanol production from biomass is becoming a hot topic internationally. Traditional static solid state fermentation (TS-SSF) for bioethanol production is similar to the traditional method of intermittent operation. The main problems of its large-scale intensive production are the low efficiency of mass and heat transfer and the high ethanol inhibition effect. In order to achieve ...

2013
Vitali A Svetlitchnyi Oliver Kensch Doris A Falkenhan Svenja G Korseska Nadine Lippert Melanie Prinz Jamaleddine Sassi Anke Schickor Simon Curvers

BACKGROUND Consolidated bioprocessing (CBP) of lignocellulosic biomass to ethanol using thermophilic bacteria provides a promising solution for efficient lignocellulose conversion without the need for additional cellulolytic enzymes. Most studies on the thermophilic CBP concentrate on co-cultivation of the thermophilic cellulolytic bacterium Clostridium thermocellum with non-cellulolytic thermo...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Daehwan Chung Minseok Cha Adam M Guss Janet Westpheling

Ethanol is the most widely used renewable transportation biofuel in the United States, with the production of 13.3 billion gallons in 2012 [John UM (2013) Contribution of the Ethanol Industry to the Economy of the United States]. Despite considerable effort to produce fuels from lignocellulosic biomass, chemical pretreatment and the addition of saccharolytic enzymes before microbial bioconversi...

2017
Armanul Nasir Shafkat Shamim Rahman Md. Mahboob Hossain Naiyyum Choudhury

In view of the anticipated shortage of the traditional supplies of fossil fuels, there is a great deal of interest in the production of ethanol as an alternative biofuel in recent years. The main objective of this research work was to isolate and characterize stress tolerant, high potential ethanol producing yeast strains from various fruit peel. Two yeast isolates from pineapple (Pa) and orang...

2014
C.-Y. Cynthia Lin

Recently the support of biofuel production has been a politically sensitive topic. Politicians have pushed for support for fuel ethanol production as an environmentally friendly alternative to imported oil, as well as a way to boost farm profits and improve rural livelihoods. Several government policies actively promote ethanol production via tax incentives and mandates, and these policies are ...

Journal: :Frontiers in microbiology 2016
George E. Anasontzis Elisavet Kourtoglou Silas G. Villas-Boâs Dimitris G. Hatzinikolaou Paul Christakopoulos

Fusarium oxysporum is one of the few filamentous fungi capable of fermenting ethanol directly from plant cell wall biomass. It has the enzymatic toolbox necessary to break down biomass to its monosaccharides and, under anaerobic and microaerobic conditions, ferments them to ethanol. Although these traits could enable its use in consolidated processes and thus bypass some of the bottlenecks enco...

2009
Elena PĂTRAŞCU Gabriela RÂPEANU Camelia BONCIU Constanţa VICOL Gabriela BAHRIM

___________________________________________________________________________________________ Abstract In commercial ethanol production producers often use sugarcane or sugar beet molasses as raw material due to their abundance and low costs. The most employed microorganism used for fermentation is Saccharomyces cerevisiae yeast due to its ability to hydrolyze sucrose from cane or beet molasses i...

Journal: :FEMS yeast research 2009
Frank Vriesekoop Cornelia Haass Neville B Pamment

Ethanol inhibition is a commonly encountered stress condition during typical yeast fermentations and often results in reduced fermentation rates and production yields. While past studies have shown that acetaldehyde addition has a significant ameliorating effect on the growth of ethanol-stressed Saccharomyces cerevisiae, this study investigated the potential ameliorating effect of acetaldehyde ...

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