| 摘要 |
The present invention describes a method of producing alcohol from pretreated lignocellulosic biomass wherein the enzymatic hydrolysis stage is carried out with cellulolytic and/or hemicellulolytic enzymes produced using at least one effluent from another ethanol production process using a sugar plant as the feedstock. This method can be integrated in a method of producing alcohol from cellulosic or lignocellulosic materials, referred to as second-generation method, comprising the following stages: 1) chemical and/or physical pretreatment of a cellulosic or lignocellulosic substrate, 2) enzymatic hydrolysis of the pretreated substrate using cellulolytic and/or hemicellulolytic enzymes, 3) alcoholic fermentation by a suitable alcohol-producing microorganism of the hydrolysate from stage (2) until a fermentation must is obtained, and separation of the alcohol-producing microorganism used in stage (3), separation/purification of the alcohol.
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