Document Detail


Ethanol production via in situ fungal saccharification and fermentation of mild alkali and steam pretreated corn fiber.
MedLine Citation:
PMID:  20624677     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effect of mild alkali and steam pretreatments on fungal saccharification and sequential simultaneous-saccharification and fermentation (SSF) of corn fiber to ethanol was studied. The corn fiber was pretreated with: (i) 2% NaOH (w/w) at 30 degrees C for 2h and (ii) steaming at 100 degrees C for 2h. Ethanol yields were 2.6g, 2.9g and 5.5g ethanol/100g of corn fiber, respectively, for Phanerochaete chrysosporium, Gloeophyllum trabeum and Trichoderma reesei saccharification and sequential SSFs. SSF with commercial cellulase enzyme - Spezyme-CP had 7.7g ethanol/100g corn fiber. Mild alkali pretreatment resulted in higher glucose yields following fungal saccharification of corn fiber. However, the ethanol yields were comparatively similar for untreated and mild alkali pretreated corn fiber. Solid-substrate fermentation of corn fiber with fungi can be improved to either eliminate or reduce the dosage of commercial cellulase enzymes during SSF.
Authors:
Prachand Shrestha; Samir Kumar Khanal; Anthony L Pometto; J Hans van Leeuwen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2010-07-10
Journal Detail:
Title:  Bioresource technology     Volume:  101     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-08-02     Completed Date:  2011-01-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  8698-705     Citation Subset:  IM    
Affiliation:
Department of Civil, Construction, and Environmental Engineering, Iowa State University, Ames, IA 50011, USA. prachand@berkeley.edu
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MeSH Terms
Descriptor/Qualifier:
Alkalies / chemistry*
Carbohydrate Metabolism / physiology*
Ethanol / metabolism*
Fermentation / physiology
Fungi / metabolism*
Plant Components, Aerial / chemistry*,  microbiology*
Solubility
Steam
Zea mays / chemistry*,  microbiology*
Chemical
Reg. No./Substance:
0/Alkalies; 0/Steam; 64-17-5/Ethanol

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


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