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Metabolomic Study of Interactive Effects of Phenol, Furfural, and Acetic Acid on Saccharomyces cerevisiae.
MedLine Citation:
PMID:  21978393     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Abstract Metabolic profiling was carried out to investigate the interactive effects of three representative inhibitors (furfural, phenol, and acetic acid) in lignocellulosic hydrolysate on Saccharomyces cerevisiae during ethanol fermentation. Our results revealed that three inhibitors exhibited significantly synergistic effects on the growth, fermentation, and some metabolites of yeast. Acetic acid exerted the most severe effects on yeast in the combination of three inhibitors, enhancing amino acids metabolism and inhibiting central carbon metabolism. The effects on yeast cells by acetic acid were enhanced by the presence of phenol and furfural, which might be owing to the loss of membrane integrity and the inhibition on metabolism. Further investigation indicated that the combination of inhibitors also exhibited antagonistic effects mainly on threonine, cadaverine, inositol, and tryptophan, weakening or reversing the effects of individual inhibitor. It might be due to the more severe damage by the combined inhibitors, and different repairing mechanism of cells in the presence of individual and combined inhibitors. Better understanding of the synergistic and antagonistic effects of the inhibitors will be helpful for the improvement of tolerant strains and the optimization of lignocellulosic fermentation.
Authors:
Ming-Zhu Ding; Xin Wang; Yang Yang; Ying-Jin Yuan
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Omics : a journal of integrative biology     Volume:  15     ISSN:  1557-8100     ISO Abbreviation:  OMICS     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-07     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101131135     Medline TA:  OMICS     Country:  United States    
Other Details:
Languages:  eng     Pagination:  647-53     Citation Subset:  IM    
Affiliation:
Key Laboratory of Systems Bioengineering (Tianjin University), Ministry of Education; Department of Pharmaceutical Engineering, School of Chemical Engineering & Technology, Tianjin University , Tianjin, People's Republic of China .
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