Effects of cellobiose and glucose on cellulose hydrolysis by both growing and resting cells of  Bacteroides cellulosolvens | Zendy

Murray William D. | Zendy

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Effects of cellobiose and glucose on cellulose hydrolysis by both growing and resting cells of Bacteroides cellulosolvens

Author(s) -

Murray William D.

Publication year - 1987

Publication title -

biotechnology and bioengineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.136

H-Index - 189

eISSN - 1097-0290

pISSN - 0006-3592

DOI - 10.1002/bit.260290916

Subject(s) - cellobiose , cellulase , catabolite repression , chemistry , cellulose , bacteroides , hydrolysis , biochemistry , beta glucosidase , food science , biology , bacteria , mutant , gene , genetics

The cellulase system of Bacteroides cellulosolvens was subjected to both catabolite repression and feedback inhibition by cellobiose. Cellulose‐solubilizing activity was 50% inhibited at a cellobiose concentration of 2.6 g/L and completely inhibited by 12 g/L. Glucose at 12 g/L (the highest concentration tested) had no effect on cellulase activity. Supplementation of B. cellulosolvens cellulase with β‐glucosidase resulted in increased conversion of cellobiose to glucose; however, a constant cellobiose pool size of approximately 7 g/L was maintained.

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