Open AccessFactors Influencing the Production of Cellulase by Aspergillus fumigatus (Fresenius)
Author(s) -
James J. P. Stewart,
Jocelyn B. Parry
Publication year - 1981
Publication title -
microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.019
H-Index - 179
eISSN - 1465-2080
pISSN - 1350-0872
DOI - 10.1099/00221287-125-1-33
Subject(s) - cellulase , aspergillus fumigatus , trichoderma reesei , cellulosic ethanol , carbon source , cellulose , chemistry , food science , incubation , microbiology and biotechnology , aspergillus , nitrogen , biochemistry , biology , organic chemistry
During growth in liquid culture containing a single cellulosic or non-cellulosic carbon source, a newly isolated strain of Aspergillus fumigatus released cellulases into the medium; the amounts produced depended on the nitrogen source, the type and concentration of the carbon source, pH and temperature. Extracellular cellulolytic activity was still increasing after incubation for 60 d with 1% (W/V) CF11 cellulose, (NH4)2SO4 as nitrogen source and a starting pH of 7. The activities of the new isolate were compared with those of A. fumigatus IMI 143864 and Trichoderma reesei QM6a (ATCC 13631) and it was shown to be a good producer of beta-glucosidase.