Propionate addition enhances the biodegradation of the xenobiotic herbicide propanil and its metabolite

Oehmen, A., Marques, R., Noronha, J. P., Carvalho, G. and Reis M. A. M. (2013) Propionate addition enhances the biodegradation of the xenobiotic herbicide propanil and its metabolite. Bioresource Technology, 127 195-201. doi:10.1016/j.biortech.2012.09.120


Author Oehmen, A.
Marques, R.
Noronha, J. P.
Carvalho, G.
Reis M. A. M.
Title Propionate addition enhances the biodegradation of the xenobiotic herbicide propanil and its metabolite
Journal name Bioresource Technology   Check publisher's open access policy
ISSN 1873-2976
0960-8524
Publication date 2013-01-01
Sub-type Article (original research)
DOI 10.1016/j.biortech.2012.09.120
Open Access Status Not yet assessed
Volume 127
Start page 195
End page 201
Total pages 7
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Abstract This study investigated ways of stimulating the biodegradation rates of the commonly applied herbicide, 3,4-dichloropropionanilide (propanil), and its metabolite, 3,4-dichloroaniline (DCA), as well as the growth rate of propanil- and DCA-degrading organisms in a mixed culture. Propionate, the other metabolite of propanil, stimulated the specific degradation rates of both propanil and DCA after a brief acclimation period. A metabolic model developed to characterise the metabolism of propanil and DCA biodegradation showed that the efficiency of oxidative phosphorylation (i.e. P/O ratio), which measures the metabolic efficiency, increased over time by 6- to 10-fold. This increase was accompanied by a 5- to 10-fold increase in the propanil and DCA biodegradation degradation rates. The biodegradation rates of the culture were unaffected when using an irrigation water matrix (Tejo river, Portugal), highlighting the utility of the culture for bioaugmentation purposes.
Keyword 3,4-Dichloroaniline (DCA)
Herbicides
Irrigation waters
Propanil
Xenobiotics
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemical Engineering Publications
 
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Created: Wed, 09 May 2018, 16:40:02 EST by Ms Kirsty Fraser on behalf of School of Chemical Engineering