Enzymatic hydrolysis of biomass material

Details Enzymatic hydrolysis of biomass material Enzymatic hydrolysis of biomass material

1995-06-06

1997-05-13

Caldarola, Glenn A.

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

127 37, 127 43, 162 25, 162 81, C13K 102, C13D 100, D21B 116, D21C 316

Patent

active

056288301

ABSTRACT:
A method of producing sugars and converting the sugars to ethanol in which particulate biomass resulting from hydrolysis of the hemicellulosic content of the biomass is subjected to enzymatic hydrolysis of the cellulosic content to glucose and fermentation of the glucose to ethanol. The particulate biomass resulting from hydrolysis of the hemicellulosic content of the feed stock is reduced to very fine particle size before enzymatic hydrolysis. The hydrolysis of cellulose and the fermentation of the resulting glucose may be carried out separately or they may be carried out simultaneously. The pentoses and hexoses resulting from hydrolysis of the hemicellulose may be subjected to fermentation separately to produce ethanol or they may be fermented simultaneously with the fermentation of the glucose derived from the cellulose.

REFERENCES:
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Wyman et al. (1992) Biomass and Bioenergy 3:301-307. Simultaneous saccharification and fermentation of several lignocellulosic feedstocks to fuel ethanol. Jul. 1992.

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