METHODS OF ENZYMATIC HYDROLYSIS
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United States of America Patent
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Issued Date -
Dec 13, 2012
app pub date -
Dec 22, 2011
filing date -
Nov 9, 2009
priority date (Note) -
Abandoned
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Abstract
In one embodiment the instant invention generally pertains to a method for producing glucose for fermentation. The method comprises first treating a biomass comprising a lignocellulosic material with a mixture comprising SO2 and steam at reaction conditions sufficient to produce a composition mixture comprising cellulose suitable for enzymatic hydrolysis. Specifically, the temperature, residence time, and SO2 concentration may be selected by calculating a crystallinity index (CrI) of the biomass and using the calculated crystallinity index as an indicator of enzymatic hydrolysis rate. In this manner cellulose may be enzymatically hydrolyzed glucose for aerobic or anaerobic fermentation.
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