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Microbial delignification of corn stover by Ceriporiopsis subvermispora for improving cellulose digestibility

Paper ID Volume ID Publish Year Pages File Format Full-Text
17608 42683 2010 6 PDF Available
Title
Microbial delignification of corn stover by Ceriporiopsis subvermispora for improving cellulose digestibility
Abstract

Delignification of corn stover by the white rot fungus Ceriporiopsis subvermispora in solid-state cultivation was evaluated for improving subsequent enzymatic hydrolysis. The results showed that C. subvermispora selectively degraded lignin by as much as 39.2% while the cellulose loss was less than 5% during 42 d of cultivation. However, hemicellulose loss of up to 27.0% was concomitant with the lignin degradation. Ligninolytic enzymes, MnP and laccase, were detected during degradation of corn stover by C. subvermispora. For major hydrolytic enzymes, xylanase was the only enzyme detected. The enzymatic hydrolysis yield of corn stover delignified by C. subvermispora was remarkably improved, reaching about 57–67% overall glucose yield after 18–42 d of pretreatment, while the glucose yield of the untreated was only 22%. A higher overall glucose yield of about 72% was obtained when the enzymatic hydrolysis of the 18 d treated corn stover was supplemented with an accessory xylanase/cellulase enzyme complex.

Keywords
Corn stover; Ceriporiopsis subvermispora; White rot fungi; Delignification; Microbial pretreatment; Enzymatic hydrolysis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 47, Issues 1–2, 5 July 2010, Pages 31–36
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us