The suitable culture condition and culture medium of the four white rot fungi were researched through the experiment in the change of enzymatic activity of filter paperlyase,carboxymethyl celluose,and micro-crystalline cellulase after fermentation.The result demonstrated: all these three enzymes showed the activity throughout the whole cultivation circuit,but great different exited in the activities and summits of them.By comparing,enzyme with the higher activity was selected and the suitable situation of i...