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Biodegradation of nonylphenol in a continuous bioreactor at low temperatures and effects on the microbial population

Soares, Ana LU ; Murto, Marika LU ; Guieysse, Benoit LU and Mattiasson, Bo LU (2006) In Applied Microbiology and Biotechnology 69(5). p.597-606
Abstract
A packed-bed bioreactor inoculated with a mixed culture obtained from a contaminated site was used to continuously treat a saturated solution of nonylphenol. The reactor was operated at feeding rates of 13–112 ml h−1 and temperatures of 5.5, 10, and 15°C. Optimal bioreactor performance was achieved at 10°C and at a feeding rate of 84 ml h−1 (with a removal rate of 43 mg l−1 day−1 of nonylphenol). No endocrine activity was observed in the effluent of the bioreactor at any of the temperatures tested, and the only metabolic products found were branched carboxylic acids and alkanes (lacking an aromatic ring). The study of the microbial populations in the biofilm at the three temperatures tested using fluorescence in situ hybridization showed... (More)
A packed-bed bioreactor inoculated with a mixed culture obtained from a contaminated site was used to continuously treat a saturated solution of nonylphenol. The reactor was operated at feeding rates of 13–112 ml h−1 and temperatures of 5.5, 10, and 15°C. Optimal bioreactor performance was achieved at 10°C and at a feeding rate of 84 ml h−1 (with a removal rate of 43 mg l−1 day−1 of nonylphenol). No endocrine activity was observed in the effluent of the bioreactor at any of the temperatures tested, and the only metabolic products found were branched carboxylic acids and alkanes (lacking an aromatic ring). The study of the microbial populations in the biofilm at the three temperatures tested using fluorescence in situ hybridization showed that all the bacterial species that could be identified belonged to the phylum Proteobacteria. The most abundant class identified at all three temperatures was β-Proteobacteria. The proportions of bacteria that bound to the specific probes among the total population, identified with the bacterial probe EUB338MIX, were 60, 43, and 24% at 15, 10, and 5.5°C, respectively. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Microbiology and Biotechnology
volume
69
issue
5
pages
597 - 606
publisher
Springer
external identifiers
  • wos:000235059000017
  • pmid:16010572
  • scopus:29244487892
ISSN
1432-0614
DOI
10.1007/s00253-005-0067-x
language
English
LU publication?
yes
id
b8819216-485d-4ba9-89a2-642049d50953 (old id 158622)
date added to LUP
2016-04-01 16:11:34
date last changed
2021-09-22 02:12:42
@article{b8819216-485d-4ba9-89a2-642049d50953,
  abstract     = {A packed-bed bioreactor inoculated with a mixed culture obtained from a contaminated site was used to continuously treat a saturated solution of nonylphenol. The reactor was operated at feeding rates of 13–112 ml h−1 and temperatures of 5.5, 10, and 15°C. Optimal bioreactor performance was achieved at 10°C and at a feeding rate of 84 ml h−1 (with a removal rate of 43 mg l−1 day−1 of nonylphenol). No endocrine activity was observed in the effluent of the bioreactor at any of the temperatures tested, and the only metabolic products found were branched carboxylic acids and alkanes (lacking an aromatic ring). The study of the microbial populations in the biofilm at the three temperatures tested using fluorescence in situ hybridization showed that all the bacterial species that could be identified belonged to the phylum Proteobacteria. The most abundant class identified at all three temperatures was β-Proteobacteria. The proportions of bacteria that bound to the specific probes among the total population, identified with the bacterial probe EUB338MIX, were 60, 43, and 24% at 15, 10, and 5.5°C, respectively.},
  author       = {Soares, Ana and Murto, Marika and Guieysse, Benoit and Mattiasson, Bo},
  issn         = {1432-0614},
  language     = {eng},
  number       = {5},
  pages        = {597--606},
  publisher    = {Springer},
  series       = {Applied Microbiology and Biotechnology},
  title        = {Biodegradation of nonylphenol in a continuous bioreactor at low temperatures and effects on the microbial population},
  url          = {http://dx.doi.org/10.1007/s00253-005-0067-x},
  doi          = {10.1007/s00253-005-0067-x},
  volume       = {69},
  year         = {2006},
}