Fig. 3. Transformation by 2 DMP units/mL laccase of Trametes villosa of 4-chlorophenol in the absence and presence of various concentrations of 2,4-dichlorophenol, and 2,4-dichlorophenol in the absence and presence of various concentrations of 4-chlorophenol. Incubations were performed at 25°C in phosphate buffer at pH 7 for 24 h (standard deviation was within 5%).