N.-S. Cho, J.-H. Nam, J.-M. Park, C.-D. Koo, S.-S. Lee, N. Pashenova, S. Ohga, A. Leonowicz
Transformation of Chlorophenols by White-Rot Fungi and their Laccase
Summary
The effects of pentachlorophenol (PCP) and 2-chlorophenol (2CP) on white rot fungi, Abortiporus biennis,
Cerrena unicolor, Gloeophyllum odoratum, and Trametes versicolor were investigated. With the
exception of C. unicolor and A. biennis, concentrations of PCP higher than 50 ppm inhibited fungal
growth completely. However, extreme concentrations of PCP (500 ppm) caused a 61% increase in
growth of C. unicolor compared to the control culture within 14 days. When initial PCP concentrations
were 50 ppm A. biennis and C. unicolor achieved, respectively, 87% and 78% of chlorophenol transformation
within 3 days. However, when 2,5-dimethylaniline (0.2mM) was added to the C. unicolor
culture, 98% of PCP transformation was achieved after one hour. Under the same conditions, A. biennis
transformed 44% of PCP. Both chlorophenols are completely removed, when laccase activity reaches
its maximum. In conclusion, among the four fungi investigated, C. unicolor and A. Biennis were very
effective in transforming PCP and 2-CP. This biotransformation was greatly intensified by 2,5-dimethylaniline
and accompanied by an increase in laccase activity.
Holzforschung, Walter de Gruyter
Print ISSN: 0018-3830
Volume: 55, 11/2001
Pages: 579 - 584
Show full article (external site)
Show all available items of this journal
Search
