Comparison of β-Glucosidase Activities in Different Streptomyces Strains
Open Access
- 1 July 1983
- journal article
- research article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 46 (1), 17-21
- https://doi.org/10.1128/aem.46.1.17-21.1983
Abstract
Cellobiase (β-glucosidase) production was compared for two streptomycetes: Streptomyces flavogriseus, a known producer of cellulase complex, and Streptomyces sp. strain CB-12, a strain isolated for its rapid growth on cellobiose. The optimal conditions for enzyme activity were established in relation to pH, temperature, enzyme stability, and substrate affinity. The production of β-glucosidase by the two strains depended on the carbon substrate in the medium. Cellobiose was found to repress the biosynthesis of the enzyme in S. flavogriseus and to stimulate its production in strain CB-12. The biosynthesis of the enzyme correlated well with the accumulation of glucose in the culture filtrates. The combined action of the β-glucosidases produced by the two Streptomyces strains might allow a better utilization of the reaction products which arise during the biodegradation of cellulose.This publication has 14 references indexed in Scilit:
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