| 摘要 |
The methods and composition of the disclosure are directed to the reducing cellulase inhibition by xylooligomers through adding hemicellulase enzymes that break xylooligomers down to monomeric sugars with a corresponding increase in glucose release. What was heretofore unknown is that xylobiose and higher xylooligomers inhibit enzymatic hydrolysis of any lignocellulosic biomass (plant material) used as feed stocks for commercial ethanol production, including, but not limited to, corn stover, birch wood, switchgrass, poplar wood, Miscanthus, aspen, other grasses and woody plants, and many other types of agricultural and forestry residues, as well as municipal solid waste. In addition, the examples herein show that xylobiose and xylotriose have progressively greater effects on hydrolysis rates. In accordance with the disclosure, the addition of one or more hemicellulase enzymes, such as xylanase andβ-xylosidase, to a lignocellulosic biomass significantly improves hydrolysis performance.
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