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Keywords: Laccase , Dyestuff , Decolorization

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Large quantities of dyes used in the textile industry are discharged to recipient environment during manufacture. This situation is beginning of a process which is difficult to recovery and relevant toenvironment and human health. Therefore, pollution of dyestuff produced textile industry will be reduced by cleaning of polluted area and integrating biological approaches with technologies havingpolluting potential. In scope of this study, commercial denim dye was decolorized by using high laccase activity culture supernatant of Trametes versicolor ATCC 200801 pellets grown in potato dextrose broth including wheat bran and determined optimum conditions. In the result of experiments done, pH, initial dye concentration, temperature and incubation time were selected 4.0, 75 mg/l, 55 oCand 120 minutes, respectively. 68.02 % of decolorization was obtained at the determined optimum conditions. Furthermore, adding different metal ions to find in textile wastewater and supplementarychemical materials used fabric dyeing process to reaction medium, potential of decolorization copied with improvement was investigated effects of these. When the obtained data were examined, pollutantswhich tested at optimum conditions were observed not affected negatively decolorization. Even in the presence of Tween 80 detected the maximum inhibitor effect, 54.68 % of decolorization was obtained.


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