LIGNOCELLULOSIC SIMULTANEOUS SACCHARIFICATION AND FERMENTATION METHOD IMPROVED BY UTILIZING SURFACTANT

摘要

A surfactant-Improved simultaneous saccharification and co-fermentation method for lignocelluloses is provided, which relates to the field of the production of fuel ethanol by the fermentation process of biomass feedstock degradation, and the technical solution of the present invention is that the pretreated lignocellulose substrate is directly subjected to surfactant-Improved simultaneous saccharification and co-fermentation without any detoxification by adding a surfactant, wherein the surfactant may be selectively added before or after the pre-enzymatic hydrolysis, wherein the present invention has economic, effective and feasible application prospects in reducing the loss of glucose, simplifying the production process, reducing equipment investment, reducing water consumption and improving ethanol production and so on, and in addition for the first time, the present invention ferments fast-growing poplar without detoxification by adding a surfactant and the simultaneous saccharification and co-fermentation method to produce ethanol, and the concentration and yield of ethanol has been improved and the total cost of the ethanol production process from lignocellulosic to ethanol is effectively reduced.