Dye decolorization by sub-tropical basidiomycetous fungi and the effect of metals on decolorizing ability |
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| Authors: | SB Pointing VVC Bucher LLP Vrijmoed |
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| Institution: | (1) Centre for Research in Fungal Diversity, Department of Ecology & Biodiversity, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China;(2) Centre for Research in Fungal Diversity, Department of Ecology & Biodiversity, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China;(3) Centre for Coastal Pollution and Conservation, Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China |
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| Abstract: | White-rot basidiomycetous fungi from sub-tropical forests plus a Phanerochaete chrysosporium control were able to decolorize several azo, triphenylmethane and heterocyclic/polymeric dyes over 14 days. The effects of metal ions on decolorizing ability towards the dye Poly-R varied. Two sub-tropical strains were capable of decolorization in the presence of up to 0.25 mM Cd2+, Cu2+ and Zn2+, whereas decolorization by P. chrysosporium was completely inhibited by all metals at concentrations as low as 0.1 mM. In all cases decolorizing ability was more sensitive than biomass production to metal inhibition. |
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| Keywords: | Azo dyes cadmium copper heterocyclic dyes triphenylmethane dyes white-rot fungi zinc |
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