title: Production of beta-glucosidase by Aspergillus terreus.
abstract: The production of beta-glucosidase by Aspergillus terreus was investigated in liquid shake cultures. Enzyme production was maximum on the 7th day of growth (2.18 U/ml) with the initial pH of the medium in the range of 4.0-5.5. Cellulose (Sigmacell Type 100) at 1.0% (wt/vol) gave maximum beta-glucosidase activity among the various soluble and insoluble carbon sources tested. Potassium nitrate was a suitable nitrogen source for enzyme production. Triton X-100 at 0.15% (vol/vol) increased the enzyme levels of A. terreus. The test fungal strain showed an ability to ferment glucose to ethanol.
authors.affiliation: Department of Microbiology and Biotechnology Centre, Faculty of Science, M.S. University of Baroda, India.
authors.forename: S
authors.initials: S
authors.lastname: Pushalkar
authors.forename: K K
authors.initials: KK
authors.lastname: Rao
authors.forename: K
authors.initials: K
authors.lastname: Menon
mesh_terms: D001230:Aspergillus / Q000201:enzymology* / Q000254:growth & development / Q000378:metabolism; D001709:Biotechnology; D003470:Culture Media; D005285:Fermentation; D006863:Hydrogen-Ion Concentration; D009584:Nitrogen / Q000378:metabolism; D013379:Substrate Specificity; D013501:Surface-Active Agents / Q000494:pharmacology; D001617:beta-Glucosidase / Q000096:biosynthesis* / Q000378:metabolism
chemical_list: D003470:Culture Media; D013501:Surface-Active Agents; D001617:beta-Glucosidase; D009584:Nitrogen