Cellulase Production by Trichoderma reesei using Sugar Beet Pulp

Document Type : Full Article

Authors

Department of Food Science and Technology, College of Agriculture, Shiraz University, Shiraz, I. R. Iran

Abstract

Cellulase production by the fungus Trichoderma reesei was studied using sugar beet pulp (SBP) as a substrate. The subculture medium was a salt solution consisting of KH2PO4, CaCl2, etc. Fungal cells were sub-cultured in an orbital shaker (180 rpm) at 30°C for 1-2 generations (two days for each generation) and were then used as an inoculum. Exponential cells were inoculated into a medium containing SBP. Data showed that cellulose in SBP has a potential to be used as a substrate to produce cellulase. The effect of cellulose concentration on cellulase production was investigated. Using the medium composition (the mixture of chemical salts and SBP substrate) and a fermentation time of 4-6 days, a maximum cellulase activity of 0.46 IU/ml of filter paper activity was obtained.

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