METHOD FOR OBTAINING A FERMENTABLE PRODUCT FROM POLLUTED LIGNO-CELLULOSIC BIOMASS
First Claim
1. Method for obtaining a fermentable product that is intended for the production of metabolites by fermentation, characterized in that it comprises the following stages:
- a) Detoxification of a polluted lignocellulosic raw material that comprises at least one polluting component;
Solid-liquid extraction for extracting by solubilization the pollutingcomponent(s) of the lignocellulosic raw material using at least one solvent,Recovery of the cleaned lignocellulosic raw material,b) Defibration pretreatment of the cleaned lignocellulosic raw material,c) Enzymatic hydrolysis of the pretreated lignocellulosic raw material in the presence of cellulase, and production of a fermentable product,d) Optionally, purification of the fermentable product that is obtained.
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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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13 Claims
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1. Method for obtaining a fermentable product that is intended for the production of metabolites by fermentation, characterized in that it comprises the following stages:
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a) Detoxification of a polluted lignocellulosic raw material that comprises at least one polluting component; Solid-liquid extraction for extracting by solubilization the polluting component(s) of the lignocellulosic raw material using at least one solvent, Recovery of the cleaned lignocellulosic raw material, b) Defibration pretreatment of the cleaned lignocellulosic raw material, c) Enzymatic hydrolysis of the pretreated lignocellulosic raw material in the presence of cellulase, and production of a fermentable product, d) Optionally, purification of the fermentable product that is obtained. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification