Document Detail

Statistical optimization of sulfite pretreatment of corncob residues for high concentration ethanol production.
MedLine Citation:
PMID:  21067916     Owner:  NLM     Status:  In-Process    
In this study, a central composite design of response surface method was used to optimize sulfite pretreatment of corncob residues, in respect to sulfite charge (5-10%), treatment time (1-2h), liquid/solid (l/s) ratio (6:1-10:1) and temperature (150-180°C) for maximizing glucose production in enzymatic hydrolysis process. The relative optimum condition was obtained as follows: sulfite charge 7.1%, l/s ratio 7.6:1, temperature 156°C for 1.4h, corresponding to 79.3% total glucan converted to glucose+cellobiose. In the subsequent simultaneous saccharification and fermentation (SSF) experiments using 15% glucan substrates pretreated under this kind of conditions, 60.8 g ethanol l(-1) with 72.2% theoretical yield was obtained.
Ke-Ke Cheng; Wei Wang; Jian-An Zhang; Qiang Zhao; Jin-Ping Li; Jian-Wei Xue
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-10-08
Journal Detail:
Title:  Bioresource technology     Volume:  102     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-01-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  3014-9     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Ltd. All rights reserved.
Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, PR China.
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