Document Detail


Elucidation of 2-hydroxybiphenyl effect on dibenzothiophene desulfurization by Microbacterium sp. strain ZD-M2.
MedLine Citation:
PMID:  18296046     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effect of 2-hydroxybiphenyl (2-HBP), the end product of dibenzothiophene (DBT) desulfurization via 4S pathway, on cell growth and desulfurization activity was investigated by Microbacterium sp. The experimental results indicate that 2-HBP would inhibit the desulfurization activity. Providing 2-HBP was added in the reaction media, the DBT degradation rate decreased along with the increase of 2-HBP addition. By contrast, cell growth would be promoted in the addition of 2-HBP at a low concentration (<0.1mM). At high concentration of 2-HBP, the inhibition on the cell growth occurred. Meanwhile, the inhibitory effect of 2-HBP on DBT desulfurization activity was tested both in the oil/aqueous two-phase system and the aqueous system. A mathematical model was developed to explain the product formation kinetics with DBT as the sole sulfur source. The predicted results were close to the experimental data, it elucidated that along with the 2-HBP accumulation, the inhibitory effect of 2-HBP on DBT desulfurization and cell growth was enhanced.
Authors:
Han Chen; Wen-Juan Zhang; Yu-Bei Cai; Ying Zhang; Wei Li
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-03-04
Journal Detail:
Title:  Bioresource technology     Volume:  99     ISSN:  0960-8524     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-06-03     Completed Date:  2008-09-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  6928-33     Citation Subset:  IM    
Affiliation:
Institute of Environmental Engineering, Zhejiang University (Yuquan Campus), Hangzhou 310027, China.
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MeSH Terms
Descriptor/Qualifier:
Biphenyl Compounds / metabolism*
Culture Media
Gram-Positive Bacteria / metabolism*
Kinetics
Sulfur / metabolism*
Thiophenes / metabolism*
Chemical
Reg. No./Substance:
0/Biphenyl Compounds; 0/Culture Media; 0/Thiophenes; 132-65-0/dibenzothiophene; 7704-34-9/Sulfur; 90-43-7/2-phenylphenol

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


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