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Cellulase production by trichoderma harzianum in static and mixed solid‐state fermentation reactors under nonaseptic conditions
Author(s) -
Deschamps F.,
Giuliano C.,
Asther M.,
Huet M. C.,
Roussos S.
Publication year - 1985
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.260270917
Subject(s) - cellulase , solid state fermentation , trichoderma harzianum , bran , fermentation , chemistry , straw , aeration , food science , water content , pulp and paper industry , hydrolysis , botany , biochemistry , biology , organic chemistry , raw material , inorganic chemistry , geotechnical engineering , biological pest control , engineering
Cellulase production from lignocellulosic materials was studied in solid‐state cultivation by both static and mixed techniques under nonaseptic conditions. The effects of fermentation conditions, such as moisture content, pH, temperature, and aeration, on cellulase production by Trichoderma harzianum using a mixture of wheat straw (80%) and bran (20%) were investigated. With a moisture content of 74% and a pH of 5.8., 18 IU filter paper activity and 198 IU endoglucanase activity/g initial substrate content were obtained in 66 h. The extension from static column cultivation to stirred tank reactor of 65 L capacity gave similar yields of cellulase.