Document Detail


Simultaneous saccharification and fermentation of lignocellulosic residues pretreated with phosphoric acid-acetone for bioethanol production.
MedLine Citation:
PMID:  19289273     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Bermudagrass, reed and rapeseed were pretreated with phosphoric acid-acetone and used for ethanol production by means of simultaneous saccharification and fermentation (SSF) with a batch and fed-batch mode. When the batch SSF experiments were conducted in a 3% low effective cellulose, about 16 g/L of ethanol were obtained after 96 h of fermentation. When batch SSF experiments were conducted with a higher cellulose content (10% effective cellulose for reed and bermudagrass and 5% for rapeseed), higher ethanol concentrations and yields (of more than 93%) were obtained. The fed-batch SSF strategy was adopted to increase the ethanol concentration further. When a higher water-insoluble solid (up to 36%) was applied, the ethanol concentration reached 56 g/L of an inhibitory concentration of the yeast strain used in this study at 38 degrees C. The results show that the pretreated materials can be used as good feedstocks for bioethanol production, and that the phosphoric acid-acetone pretreatment can effectively yield a higher ethanol concentration.
Authors:
Hui Li; Nag-Jong Kim; Min Jiang; Jong Won Kang; Ho Nam Chang
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Publication Detail:
Type:  Journal Article     Date:  2009-03-16
Journal Detail:
Title:  Bioresource technology     Volume:  100     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-04-06     Completed Date:  2009-08-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  3245-51     Citation Subset:  IM    
Affiliation:
Biochemical Engineering Lab, Department of Chemical and Biomolecular Engineering, KAIST, Yuseong-gu, Daejeon, Republic of Korea.
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MeSH Terms
Descriptor/Qualifier:
Acetone / chemistry
Biomass
Bioreactors
Biotechnology / methods*
Carbohydrates / chemistry
Cellulose / chemistry,  metabolism*
Energy-Generating Resources
Ethanol / chemistry,  metabolism*
Fermentation*
Hydrolysis
Lignin / chemistry
Phosphoric Acids / chemistry
Saccharomyces cerevisiae / metabolism*
Temperature
Time Factors
Chemical
Reg. No./Substance:
0/Carbohydrates; 0/Phosphoric Acids; 11132-73-3/lignocellulose; 64-17-5/Ethanol; 67-64-1/Acetone; 7664-38-2/phosphoric acid; 9004-34-6/Cellulose; 9005-53-2/Lignin

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


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