Removal of PCBs by various white rot fungi in liquid cultures |
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Authors: | Č. Novotný B. R. M. Vyas P. Erbanová A. Kubátová V. Šašek |
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Affiliation: | (1) Laboratory of Experimental Mycology, Institute of Microbiology, Academy of Sciences of the Czech Republic, 142 20 Prague 4, Czech Republic;(2) Department of Bioscience, Saurashtra University, 360 005 Rajkot, India |
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Abstract: | The ability ofPhanerochœte chrysosporium, Trametes versicolor, Coriolopsis polyzona, andPleurotus ostreatus growing in a nitrogen-limited mineral medium (NMM) to degrade PCBs in a commercial, Delor 106 mixture at a concentration of 0.9 ppm was compared. The respective amounts of PCBs removed from the fungal cultures within 3 weeks were 25, 50, 41, and 0%. The capacities of the individual fungal species to remove PCBs correlated to some extent with their capabilities of decolorization of NMM agar containing both Poly R-478 or Remazol Brilliant Blue R dyes. Enzyme estimations indicated that both high and relatively stable activities of Mn-dependent peroxidase, Mn-independent peroxidase, lignin peroxidase, and laccase characterized efficient PCB degraders. The work was supported by a grant of theAcademy of Sciences of the Zech Republic no. A6301501 and a grant of theAgency of the Zech Republic no. 204/94/1190. |
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