Dye decolorizing potential of a novel fungus Coriolus versicolor ML04 in the medium optimized by response surface methodology

The potential of the white rot fungus, Coriolus versicolor ML04 to decolorize the widely used textile dye Blue BB was tested by employing statistical optimization. Response surface methodology (RSM) involving a central composite design (CCD) was applied to evaluate the interactive effects of four significant factors in different ranges i.e.; glucose (0.5 - 2.5 g/L), yeast extract (0.4 -1.2 g/L), dye concentration (100 - 500 ppm) and inoculum size (5 - 20 % v/v) to decolorize the Blue BB. The results demonstrated the effectiveness of the statistical experimental design and the ability of C. versicolor ML04 for maximum dye decolorization (>96%) at the optimum conditions of the significant factors.