Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/S0045-6535(00)00132-6
Title (Primary) Peroxidative degradation of selected PCB: a mechanistic study
Author Köller, G.; Möder, M.; Czihal, B.
Source Titel Chemosphere
Year 2000
Department ANA; EXPOEPID
Volume 41
Issue 12
Page From 1827
Page To 1834
Language englisch
Keywords White rot fugus; Trametes multicolor; HRP; Horseradish peroxidase
Abstract The enzyme-induced decomposition and biodegradation of PCB were investigated. 2,5-Dichlorobiphenyl (PCB 9) and 2,2',5,5'-tetrachlorobiphenyl (PCB 52) were used as example compounds to study efficiency and mechanism of the degradation processes. It was found that the application of horseradish peroxidase (HRP) together with defined amounts of hydrogen peroxide removed 90% of the initial concentration of PCB 9 and 55% of the initial concentration of PCB 52 from an aqueous solution after a reaction period of 220 min. Dechlorination was observed as the initial step. Although the metabolites identified were mainly chlorinated hydroxybiphenyls, benzoic acids and non-substituted 1,1'-biphenyl, some higher chlorinated biphenyl isomers also appeared. The biodegradation of PCB 9 using the white rot fungus Trametes multicolor took about four weeks and reduction was about 80% of the initial concentration. The metabolites produced (dichlorobenzenes, chlorophenols and alkylated benzenes) were not quite the same as those observed upon incubation with HRP.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=7340
Köller, G., Möder, M., Czihal, B. (2000):
Peroxidative degradation of selected PCB: a mechanistic study
Chemosphere 41 (12), 1827 - 1834 10.1016/S0045-6535(00)00132-6