Laccase production by a white-rot fungus Coriolus versicolor was studied under submerged fermentation (condition).The optimal fermentation parameters were as follows:carbon source 1.1 g/L sucrose combined with 1.1 g/L glucose,nitrogen source 1.88 g/L bean cake powder,culture temperature 30 ℃ and initial pH value 4.5.The activity of laccase reached 18.2 U/mL.The optimum reaction temperature of laccase was 60 ℃,and laccase was stable when the environmental temperature was below 55 ℃.Considering the thermal st...