Document Detail


Identification of Triclosan-O-Sulfate and other transformation products of Triclosan formed by activated sludge.
MedLine Citation:
PMID:  25306094     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Aerobic degradation experiments of Triclosan were performed in activated sludge to identify possible transformation products for this compound. During 7days, the formation of biotransformation products such as 2,4-Dichlorophenol, 4-Chlorocatechol, 5-Hydroxy-Triclosan and other Monohydroxy-Triclosan derivatives as well as Dihydroxy-Triclosan-derivatives were observed. The structure of 5-Hydroxy-Triclosan was elucidated by NMR data for the first time in sludge degradation experiments. Additionally the production of a hitherto unknown transformation product in sludge, i.e., Triclosan-O-Sulfate was detected. During the incubations, the concentrations of this transformation product changed from zero to 330μgL(-1). Based on the analysis of the biodegradation products, three types of reactions were identified: 1) chemical scission of ether bond to form phenols and catechols, 2) addition of OH moieties to the aromatic ring, and 3) adding of methyl or sulfate groups to the original hydroxyl group.
Authors:
Xijuan Chen; Mònica Escolà Casas; Jeppe Lund Nielsen; Reinhard Wimmer; Kai Bester
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-10-9
Journal Detail:
Title:  The Science of the total environment     Volume:  505C     ISSN:  1879-1026     ISO Abbreviation:  Sci. Total Environ.     Publication Date:  2014 Oct 
Date Detail:
Created Date:  2014-10-12     Completed Date:  -     Revised Date:  2014-10-13    
Medline Journal Info:
Nlm Unique ID:  0330500     Medline TA:  Sci Total Environ     Country:  -    
Other Details:
Languages:  ENG     Pagination:  39-46     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Elsevier B.V. All rights reserved.
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