Abstract
Degradation of 2,4,8-trichlorodibenzofuran (2,4,8-TCDF) by the isolate F0607, identified as belonging to the genus Cerrena, was investigated in liquid culture medium. Strain F0607 showed good decolorization and production of ligninolytic enzymes. The degradation of 2,4,8-TCDF per-unit biomass increased during the incubation period in presence of 1 or 10 mg l−1 2,4,8-TCDF and the mycelial biomass increased with the increase in 2,4,8-TCDF concentration. The rate of glucose consumption (k1) also increased rapidly when 2,4,8-TCDF was present in the culture. All three types of ligninolytic enzymes were detected in which laccase had the highest enzyme activity. CuSO4 could induce the activity of laccase and increase the degradation of 2,4,8-TDCF, whereas 1-hydroxybenzotriazole (HBT) also enhanced degradation via nitroxy radical (>N–O) oxidation.
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