Degradation Profiles of Branched Nonylphenol Isomers by Sphingobium amiense and Sphingomonas cloacae(Soil Biology)

概要

論文の詳細を見る
Biodegradation activity of branched nonylphenols (BNPs) by Sphingobium amiense strain YT^T and Sphingomonas cloacae strain S-3^T was examined. High-resolution GC-MS was used to separate five isomer groups from the commercial BNP mixture. In the time course experiments of BNP degradation, the isomers with alpha-dimethyl and those with α-methyl, α-ethyl configurations were rapidly degraded by Sphingobium amiense strain YT^T, while those with highly branched chains were broken down less efficiently. In contrast, Sphingomonas cloacae strain S-3^T degraded all the isomers of the BNP groups at similar rates. The utilization and degradation of 4-n-alkylphenols (C3 to C9) and 8 phenolic acids were also tested with the strains. The results suggested that Sphingomonas cloacae strain S-3^T displays a catabolic activity possesses the catabolism specific of branched alkylphenols, while Sphingobium amiense strain YT^T is a versatile organism capable of utilizing a wide range of phenolic compounds including phenolic acids, and of degrading 4-n-alkylphenols and a limited range of BNPs.
社団法人日本土壌肥料学会の論文