title: Cometabolic degradation of acifluorfen by a mixed microbial culture.
abstract: Laboratory experiments were conducted to study the degradation of acifluorfen 5-[2-chloro-4-(trifluoromethyl)-phenoxyl]-2-nitrobenzoic acid by a mixed microbial population. Concentrations of acifluorfen up to 100 mg/l had no inhibitory effect on the growth of microbial culture. The microorganisms degraded acifluorfen through a cometabolic process in presence of 2-nitrobenzoate. The degradation rate of acifluorfen, determined by liquid chromatography analysis in batch cultures incubated under oxygen-limited conditions were compared. The degradation was slower under oxygen than oxygen-limited conditions. Aminoacifluorfen was produced in both conditions.
authors.affiliation: Dipartimento di Scienze e Tecnologie Alimentari e Microbiologiche, Università degli Studi di Milano, Italy.
authors.forename: V
authors.initials: V
authors.lastname: Andreoni
authors.forename: M
authors.initials: M
authors.lastname: Colombo
authors.forename: M
authors.initials: M
authors.lastname: Gennari
authors.forename: M
authors.initials: M
authors.lastname: Nègre
authors.forename: R
authors.initials: R
authors.lastname: Ambrosoli
mesh_terms: D000085:Acetates / Q000378:metabolism; D019342:Acetic Acid; D001419:Bacteria / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism*; D001673:Biodegradation, Environmental; D002851:Chromatography, High Pressure Liquid; D003470:Culture Media; D006540:Herbicides / Q000378:metabolism* / Q000494:pharmacology; D013058:Mass Spectrometry; D009579:Nitrobenzoates / Q000378:metabolism* / Q000494:pharmacology; D010101:Oxygen Consumption
chemical_list: D000085:Acetates; D003470:Culture Media; D006540:Herbicides; D009579:Nitrobenzoates; C018425:acifluorfen; D019342:Acetic Acid