Process for producing a sugar solution by combined chemical and enzymatic saccharification of polysaccharide enriched biomass
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United States of America Patent
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Feb 12, 2013
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May 20, 2010
app pub date -
Nov 19, 2009
filing date -
Nov 20, 2008
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Abstract
Concentrated sugar solutions obtained from polysaccharide enriched biomass by contacting biomass with water and at least one nucleophilic base to produce a polysaccharide enriched biomass comprising a solid fraction and a liquid fraction and then contacting enriched biomass with a dilute mineral acid selected from the group consisting of sulfuric acid, phosphoric acid, hydrochloric acid, nitric acid, or a combination thereof, to produce an intermediate saccharification product, which is contacted with an enzyme consortium to produce a final saccharification product comprising fermentable sugars.
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