Solid-state fermentation with Aspergillus niger for cellobiase production

Author: Tsao George   Xia Liming   Cao Ningjun   Gong Cheng  

Publisher: Humana Press, Inc

ISSN: 0273-2289

Source: Applied Biochemistry and Biotechnology, Vol.84, Iss.1-9, 2000-03, pp. : 743-749

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Abstract

Aspergillus niger NRRL3 was cultivated in a moist wheat bran and ground corncob solid medium supplemented with inorganic minerals for the production of cellobiase (β-1,4-glucosidase, EC 3.2.1.21). With this method, A. niger NRRL3 was able to produce a high concentration of cellobiase (215 IU/gofsolid substrate) after 96 h of incubation. Temperature and moisture content affected final cellobiase titers. The best conditions for cell obiase production from solid substrate by A. niger NRRL3 were determined to be 70% moisture and 35°C.

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