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Comparative study on the enzymology characteristics of cellulases produced by four industrial strains

Gao Xing-xing

Abstract

Enzymatic characteristics of cellulase of Trichoderma koningii,Trichoderma viride,Aspergillus niger and Trichoderma reesei were investigated.The results showed that the cellulase activity decrease when pH below 5.0 and the temperature above 60 ℃.Fe2+ and Mn2+ can both increased the enzymatic activity,while Pb2+and Zn2+ inhibited the activity greatly.A.niger was considered to be an ideal strain for cellulase production due to the highest activity among the strains.

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Key concepts: Cellulase, Trichoderma viride, Trichoderma reesei, Aspergillus niger, Chemistry, Trichoderma, Food science, Enzyme