Document Detail

Degradation of plasticizer di-n-butylphthalate by Delftia sp. TBKNP-05.
MedLine Citation:
PMID:  16604416     Owner:  NLM     Status:  MEDLINE    
Bacterial strain Delftia sp. TBKNP-05, isolated by para-hydroxybenzoate enrichment technique, is capable of degrading di-n-butylphthalate (DBP) as a sole source of carbon and energy. Analysis of intermediates by thin-layer chromatography and high-performance liquid chromatography indicated the presence of monobutylphthalate (MBP), phthalate (PA), and protocatechuate (PCA). The washed cells grown on DBP and PA showed appreciable oxidation of DBP, MBP, PA, and PCA. The enzyme activities in cell-free extracts of Delftia sp. TBKNP-05 exhibited the presence of DBP esterase, MBP esterase, PA-dioxygenase, and PCA 4,5-dioxygenase. The PCA is metabolized by meta-cleavage pathway, leading to further mineralization of the compound in this bacterium.
Neelakanteshwar K Patil; Rajesh Kundapur; Yogesh S Shouche; T B Karegoudar
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Publication Detail:
Type:  Journal Article     Date:  2006-04-06
Journal Detail:
Title:  Current microbiology     Volume:  52     ISSN:  0343-8651     ISO Abbreviation:  Curr. Microbiol.     Publication Date:  2006 May 
Date Detail:
Created Date:  2006-04-13     Completed Date:  2006-07-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7808448     Medline TA:  Curr Microbiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  369-74     Citation Subset:  IM    
Department of Biochemistry, Gulbarga University, Gulbarga, Karnataka, 585 106, India.
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MeSH Terms
Biodegradation, Environmental
Culture Media
DNA, Ribosomal / analysis
Delftia / classification,  enzymology,  genetics,  metabolism*
Dibutyl Phthalate / metabolism*
Dioxygenases / metabolism
Esterases / metabolism
Molecular Sequence Data
Phthalic Acids / metabolism
Plasticizers / metabolism*
RNA, Ribosomal, 16S / genetics
Sequence Analysis, DNA
Reg. No./Substance:
0/Culture Media; 0/DNA, Ribosomal; 0/Phthalic Acids; 0/Plasticizers; 0/RNA, Ribosomal, 16S; 84-74-2/Dibutyl Phthalate; 88-99-3/phthalic acid; EC 1.13.11.-/Dioxygenases; EC 3.1.-/Esterases

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