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Extracellular invertase from Aspergillus athecius: isolation and immobilization

Madyastha, KM and Ganguli, AR and Kubair, VG and Kowser, N and Vidya, D (1987) Extracellular invertase from Aspergillus athecius: isolation and immobilization. In: Biotechnology Letters, 9 (8). pp. 555-560.

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A fungal strain isolated from soil and identified asAspergillus athecius, when grown on moistened wheat bran produced large amounts of extracellular invertase. Most of the invertase from the moldy bran was easily extracted by low ionic strength buffer (0.005 M, pH 5.7). The crude invertase immobilized on DEAE cellulose showed not only increased activity (approxiate 45%) but also greater thermal and storage stability than the free enzyme. The free and the bound enzymes showed a temperature optimum of 50–55°C and a pH optimum of 5.7 and 4.8 respectively. The Km app. of the bound enzyme was lower than that of the free enzyme

Item Type: Journal Article
Publication: Biotechnology Letters
Publisher: Springer
Additional Information: Copyright of this article belongs to Springer
Department/Centre: Division of Chemical Sciences > Organic Chemistry
Date Deposited: 12 Jun 2008
Last Modified: 27 Aug 2008 13:26
URI: http://eprints.iisc.ac.in/id/eprint/14276

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