Cellulase is a kind of enzyme, since the bio-catalysis in the decomposition of cellulose. 
 The cellulase widespread in the nature of the organism. Bacteria, fungi, and animals can produce cellulase. Generally used in the production of cellulases from the fungi, the typical wood enzyme genera Aspergillus and Penicillium species produce cellulase susceptible to degradation, resulting in lower enzyme production capacity. 
 Cellulase in the food industry and environmental industries are widely used. During alcoholic fermentation, the addition of cellulase can increase the utilization of raw materials, and wine quality has improved. 
 Cellulase is difficult to purify, the practical application of the general also contains hemicellulase and other related enzymes such as amylase (amylase addition had a), protease (protease). 
 Cellulase is a wide range of sources is very broad. Different sources of cellulose enzyme structure and function. The fungal cellulase production, activity, animal husbandry and feed industry cellulase fungal cellulase.