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Revista Colombiana de Biotecnología
versão impressa ISSN 0123-3475
Resumo
FERNANDEZ, Jorge Andrés; HENAO, Lina María; PEDROZA-RODRIGUEZ, Aura Marina e QUEVEDO-HIDALGO, Balkys. Immobilising lignilolytic fungus for removing reactive black 5 dye. Rev. colomb. biotecnol [online]. 2009, vol.11, n.1, pp.59-72. ISSN 0123-3475.
Waste water from the textile industry represents a major environmental and health problem because it contains azo dyes whose carcirogenic effect has been tested in research. Biological treatment represents a valuable alternative for removing these dyes. The effect of Trametes versicolor, Pleurotus ostreatus and Phanerochaete chrysosporium rot fungi on decoloration of water containing reactive black five (NR5) textile dye was evaluated in this work. Immobilising the fungi on polyurethane foam and luffa sponge (Luffa cylindrica) supports was studied in order to select the best support and the fungi having the best decolorisation. Both supports were equally effective; however, the luffa sponge was selected as being a natural product. Trametes versicolor produced the highest decolorisation percentages in four days (96%, 98% and 98% for 300 ppm, 150 ppm and 75 ppm NR5 concentrations, respectively) while lacase enzyme activity was 8 UL-1, 7 UL-1 and 5 UL-1 for each of them.
Palavras-chave : Trametes versicolor; Pleurotus ostreatus; Phanerochaete chrysosporium Luffa cylindrinca; polyurethane foam; reactive black 5 dye.