Transcription of Review: Continuous hydrolysis and fermentation for ...
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Review: Continuous hydrolysis and fermentation for cellulosic ethanol productionSimone Brethauer, Charles E. Wyman*Center for Environmental Research and Technology and Chemical and Environmental Engineering Department, University of California, Riverside, CA 92507, United Statesarticle infoArticle history:Received 31 August 2009 Received in revised form 2 November 2009 Accepted 3 November 2009 Available online 14 December 2009 Keywords: Continuous fermentationEnzymatic hydrolysisFuel ethanolLignocellulosic biomassSimultaneous saccharification andfermentation (SSF)abstractEthanol made biologically from a variety of cellulosic biomass sources such as agricultural and forestryresidues, grasses, and fast growing wood is widely recognized as a unique sustainable liquid transporta-tion fuel with powerful economic, environmental, and strategic attributes, but production costs must becompetitive for these benefits to be realized. Continuous hydrolysis and fermentation processes offerimportant potential advantages in reducing costs, but little has been done on Continuous processing ofcellulosic biomass to ethanol.
priceswingsinpetroleumprices.Inthiscontext,costsmustbekept as low as possible, and continuous fermentation of cellulosic bio-mass to ethanol can offer important advantages in terms of greater
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