Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10395220 | Bioresource Technology | 2011 | 4 Pages |
Abstract
The feasibility of three-stage hydrolysis of steam-exploded corn stover at high-substrate concentration was investigated. When substrate concentration was 30% and enzyme loading was 15-30Â FPU/g cellulose, three-stage (9Â +Â 9Â +Â 12Â h) hydrolysis could reach a hydrolysis yield of 59.9-81.4% in 30Â h. Compared with one-stage hydrolysis for 72Â h, an increase of 34-37% in hydrolysis yield could be achieved. When steam-exploded corn stover was used as the substrate for enzyme synthesis and hydrolysis was conducted at a substrate concentration of 25% with an enzyme loading of 20Â FPU/g cellulose, a hydrolysis yield of 85.1% was obtained, 19% higher than that the commercial cellulase could reach under the same conditions. The removal of end products was suggested to improve the adsorption of cellulase on the substrate and enhance the productivity of enzymatic hydrolysis.
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Authors
Jing Yang, Xiaoping Zhang, Qiang Yong, Shiyuan Yu,