Biotransformation of phenolics with laccase containing bacterial spores |
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Authors: | C Held A Kandelbauer M Schroeder A Cavaco-Paulo G M Guebitz |
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Institution: | (1) Department of Environmental Biotechnology, Graz University of Technology, Petersgasse 12, 8010 Graz, Austria;(2) Department of Textile Engineering, University of Minho, 4800 Guimaraes, Brazil |
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Abstract: | Treatment of effluents containing phenols such as textile dyes with fungal laccases is usually limited to the acid to neutral
pH range and moderate temperatures. Here we demonstrate for the first time that spore-bound laccases which are stable at high
temperatures and pH values can be used for phenolic dye decolorisation. Laccase containing spores from Bacillus SF were immobilized on alumina pellets. Both immobilized and free spores were able to completely decolorize the common textile
dyes Mordant Black 9, Mordant Brown 96/Mordant Brown 15, and Acid Blue 74 within 90 min of incubation time and decolorized
solutions were successfully used in re-dyeing. |
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Keywords: | Bacillus Spores Biodegradation of phenolics Effluent treatment |
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