Document Detail


Pretreatment by ultra-high pressure explosion with homogenizer facilitates cellulase digestion of sugarcane bagasses.
MedLine Citation:
PMID:  20206506     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Sugarcane bagasse was treated with ultra-high pressure explosion (UHPE) in a homogenizer. UHPE significantly decreased the particle size and disrupt the microstructure of bagasse, which was changed from a rigid and highly ordered fibril to a distorted, poly-porous and "empty-inside" structure. UHPE decreased the crystallinity indexes (CrIs) from 54.8% (0 MPa) to 45.3% (100 MPa), and increased the accessible surface area (ASA) of bagasse nearly 3-fold. The effect of UHPE on composition was minor, only decreased the lignin slightly. However, UHPE increased enzymatic digestibility substantially from 29.5% (0 MPa) to 59.4% (100 MPa), and the microstructure disruption and thereby ASA increase were found to be the major factors to enhance the digestibility. UHPE combination with treatment of 0.5% NaOH at 125 degrees C for 120 min exhibited a significant delignification and increased enzymatic digestibility to 95.5% with 5.8 FPU cellulase/g solid, implying that UHPE combined with alkaline pretreatment can be a potential alternative for biomass pretreatment in biofuel production.
Authors:
Dong Chen; Yuan Guo; Ribo Huang; Qi Lu; Jun Huang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-03-04
Journal Detail:
Title:  Bioresource technology     Volume:  101     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-04-12     Completed Date:  2010-11-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  5592-600     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2010 Elsevier Ltd. All rights reserved.
Affiliation:
College of Life Science and Biotechnology, Guangxi University, 100 University Road, Nanning, Guangxi 530004, China.
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MeSH Terms
Descriptor/Qualifier:
Biomass
Biotechnology / methods*
Cellulase / chemistry*
Cellulose / chemistry*
Crystallization
Enzymes / chemistry
Hydrolysis
Lignin / chemistry
Microscopy, Electron, Scanning / methods
Particle Size
Pressure
Saccharum / chemistry*
Temperature
Time Factors
Chemical
Reg. No./Substance:
0/Enzymes; 9004-34-6/Cellulose; 9005-53-2/Lignin; 9006-97-7/bagasse; EC 3.2.1.4/Cellulase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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