Factors affecting cellulase preparation,such as cellulose,filter paper cellobiase activity,reducing sugar,protein,pH value,mycelium and degree of crystalline were studied. Lower pH was of much benefit to induction of Cl and Cx enzymes in cellulase preparation, along with increased cellobiase activity. Most of the susceptible amorphous cellulose and a part of looser crystalline cellulose were utilized, whereas about 20 % highly crystallized cellulose was very difficult for further utilization. The existence ...