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Synergism between hydrophobic proteins of corn stover and cellulase in lignocellulose hydrolysis

Paper ID Volume ID Publish Year Pages File Format Full-Text
4037 205 2010 7 PDF Available
Title
Synergism between hydrophobic proteins of corn stover and cellulase in lignocellulose hydrolysis
Abstract

To investigate the characteristics and values of plant proteins for lignocellulose conversion, cellulase synergetic proteins for lignocellulose hydrolysis were separated from fresh corn stover. The synergetic proteins have strong hydrophobic characterization, yet no cellulose hydrolytic activity. Mass spectrometry analysis indicated that the hydrophobic protein with highest abundance might be cell membrane protein of Zea mays. Compared with steam-exploded corn stover hydrolysis with microbial cellulase mixture, the glucose production was improved by 31.88% with hydrophobic proteins addition. Synergetic mechanism analysis indicated that the hydrophobic proteins reduced unspecific cellulase adsorption onto non-cellulose component of lignocelluloses during hydrolysis. The effect is more significant for exoglucanase and β-glucosidase. The amount of hydrophobic proteins in fresh corn stover is large. Therefore, supplementing microbial cellulase complex with hydrophobic proteins of plant for lignocellulose hydrolysis is a promising way for cost reduction in lignocellulose conversion.

Keywords
Cellulase; Hydrophobic proteins; Corn stover; Synergism; Lignocellulose; Enzymatic hydrolysis
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Synergism between hydrophobic proteins of corn stover and cellulase in lignocellulose hydrolysis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 48, Issue 2, 15 January 2010, Pages 218–224
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