Document Detail

A review of the occurrence, toxicity, and biodegradation of condensed thiophenes found in petroleum.
MedLine Citation:
PMID:  9783422     Owner:  NLM     Status:  MEDLINE    
Condensed thiophenes comprise a significant portion of the organosulfur compounds in petroleum and in other products from fossil fuels. Dibenzothiophene (DBT) has served as a model compound in biodegradation studies for over two decades. However, until quite recently, few other organosulfur compounds were studied, and their fates in petroleum-contaminated environments are largely unknown. This paper presents a review of the types of organosulfur compounds found in petroleum and summarizes the scant literature on toxicity studies with condensed thiophenes. Reports on the biodegradation of benzothiophene, alkylbenzothiophenes, DBT, alkylDBTs, and naphthothiophenes are reviewed with a focus on the identification of metabolites detected in laboratory cultures. In addition, recent reports on quantitative studies with DBT and naphtho[2,1-b]thiophene indicate the existence of polar sulfur-containing metabolites that have escaped detection and identification.
K G Kropp; P M Fedorak
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review    
Journal Detail:
Title:  Canadian journal of microbiology     Volume:  44     ISSN:  0008-4166     ISO Abbreviation:  Can. J. Microbiol.     Publication Date:  1998 Jul 
Date Detail:
Created Date:  1998-11-12     Completed Date:  1998-11-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0372707     Medline TA:  Can J Microbiol     Country:  CANADA    
Other Details:
Languages:  eng     Pagination:  605-22     Citation Subset:  IM    
Department of Biological Sciences, University of Alberta, Edmonton, Canada.
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MeSH Terms
Biodegradation, Environmental
Environmental Microbiology
Mutagenicity Tests
Petroleum / analysis,  metabolism*
Pseudomonas / isolation & purification
Soil Microbiology
Thiophenes / analysis,  chemistry,  metabolism*,  toxicity*
Reg. No./Substance:
0/Petroleum; 0/Thiophenes

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