METHOD FOR OBTAINING A FERMENTABLE PRODUCT FROM POLLUTED LIGNO-CELLULOSIC BIOMASS
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United States of America Patent
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Issued Date -
Jan 24, 2013
app pub date -
Mar 28, 2011
filing date -
Mar 29, 2010
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Abstract
A method for obtaining a fermentable product intended for the production of metabolites by fermentation, includes the following steps: a) detoxification of a polluted ligno-cellulosic raw material including at least one polluting component; solid-liquid extraction in order to extract the polluting component(s) from the ligno-cellulosic raw material by solubilisation using at least one solvent; recovery of the cleaned ligno-cellulosic raw material; b) pre-treatment of the cleaned ligno-cellulosic raw material by defibration; c) enzymatic hydrolysis of the pre-treated ligno-cellulosic raw material in the presence of cellulose, and obtaining a fermentable product; d) optional purification of the resulting fermentable product. The use of the resulting fermentable product for producing metabolites by fermentation, as well as to a specific method for producing ethanol from the fermentable product are also described.
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