Lignin-blocking treatment of biomass and uses thereof

Details Lignin-blocking treatment of biomass and uses thereof Lignin-blocking treatment of biomass and uses thereof

2003-03-19

2009-10-20

Gupta, Anish (Department: 1654)

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing oxygen-containing organic compound

C530S378000, C435S068100, C435S099000

Reexamination Certificate

active

07604967

ABSTRACT:
Disclosed is a method for converting cellulose in a lignocellulosic biomass. The method provides for a lignin-blocking polypeptide and/or protein treatment of high lignin solids. The treatment enhances cellulase availability in cellulose conversion. Cellulase efficiencies are improved by the protein or polypeptide treatment. The treatment may be used in combination with steam explosion and acid prehydrolysis techniques. Hydrolysis yields from lignin containing biomass are enhanced 5-20%, and enzyme utilization is increased from 10% to 50%. Thus, a more efficient and economical method of processing lignin containing biomass materials utilizes a polypeptide/protein treatment step that effectively blocks lignin binding of cellulase.

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