منابع مشابه
Cellulase, clostridia, and ethanol.
Biomass conversion to ethanol as a liquid fuel by the thermophilic and anaerobic clostridia offers a potential partial solution to the problem of the world's dependence on petroleum for energy. Coculture of a cellulolytic strain and a saccharolytic strain of Clostridium on agricultural resources, as well as on urban and industrial cellulosic wastes, is a promising approach to an alternate energ...
متن کاملEconomic Analysis of Cellulase Production Methods for Bio ‐ Ethanol
The cost of cellulase enzymes has limited the feasibility of producing ethanol from fibrous biomass. Traditional submerged fermentation (SmF) was compared to an alternative method of producing cellulase, solid state cultivation (SSC). Results from an economic analysis indicated that the unit costs for cellulase enzyme production were $15.67 (The prices are all 2004 prices in this article, excep...
متن کاملAcetone, butanol and ethanol production from domestic organic waste by solventogenic clostridia.
Domestic organic waste (DOW) was washed and dried to 85 % dryness by VAM (The Netherlands). This material contained 25.1 g glucose, 8.4 g xylose and 5.8 g other monosaccharides/100 g dry matter. Using Mansonite steam explosion and enzymatic hydrolysis, a hydrolysate containing 15.4 g glucose, 2.2 g xylose and 0.8 g other monosaccharides per l was made. Clostridium acetobutylicum DSM 1731 produc...
متن کاملEthanol and anaerobic conditions reversibly inhibit commercial cellulase activity in thermophilic simultaneous saccharification and fermentation (tSSF)
BACKGROUND A previously developed mathematical model of low solids thermophilic simultaneous saccharification and fermentation (tSSF) with Avicel was unable to predict performance at high solids using a commercial cellulase preparation (Spezyme CP) and the high ethanol yield Thermoanaerobacterium saccharolyticum strain ALK2. The observed hydrolysis proceeded more slowly than predicted at solids...
متن کاملAssembling a cellulase cocktail and a cellodextrin transporter into a yeast host for CBP ethanol production
BACKGROUND Many microorganisms possess enzymes that can efficiently degrade lignocellulosic materials, but do not have the capability to produce a large amount of ethanol. Thus, attempts have been made to transform such enzymes into fermentative microbes to serve as hosts for ethanol production. However, an efficient host for a consolidated bioprocess (CBP) remains to be found. For this purpose...
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ژورنال
عنوان ژورنال: Microbiology and Molecular Biology Reviews
سال: 2005
ISSN: 1092-2172,1098-5557
DOI: 10.1128/mmbr.69.1.124-154.2005