Biofpr :: Patent Intelligence Article :: Fermentation of glucose and xylose in cellulosic biomass using genetically modified Saccharomyces cerevisiae and a simultaneous saccharification and cofermentation process

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Published online: Jan 24, 2008

Geographical region	Europe
Subject	Pre-treatment and saccharification of cellulosic biomass
Published date	Jan 9, 2008
Title	Fermentation of glucose and xylose in cellulosic biomass using genetically modified Saccharomyces cerevisiae and a simultaneous saccharification and co-fermentation process
Patent Application Number	EP1874942 A1
Assignee	Forskarpatent I SYD AB, Sweden
Relevance	Production of ethanol from cellulose containing biomass by fermentation using a genetically engineered strain.
Type of claims	Publication
Overview	This patent discloses a method of simultaneous saccharification and co-fermentation of cellulosic biomass. Biomass is hydrolyzed to produce glucose and xylose using genetically engineered Saccharomyces cerevisiae having the genes encoding xylose reductase (XR), xylitol dehydrogenase (XDH) and endogenous gene encoding xylulokinase (XK). The method encompasses, A) using a strain of Saccharomyces cerevisiae being capable of fermenting pentoses, B) subjecting a slurry of biomass and the Saccharomyces cerevisiae for simultaneous saccharification and co-fermentation of glucose and xylose and C) isolating ethanol from the fermented slurry.
Related patent documents	US Patent publications Not Listed Foreign patent publications Not Listed
Patent Document	Full Patent Document [external link]

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