The 53-kDa proteolytic product of precursor starch-hydrolyzing enzyme of Aspergillus niger has Taka-amylase-like activity.

Ravi Kumar, K and Venkatesh, K. S. and Umesh Kumar, S. (2007) The 53-kDa proteolytic product of precursor starch-hydrolyzing enzyme of Aspergillus niger has Taka-amylase-like activity. Applied Microbiology and Biotechnology, 74 (5). pp. 1011-5. ISSN 0175-7598

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Abstract

The 53-kDa amylase secreted by Aspergillus niger due to proteolytic processing of the precursor starch-hydrolyzing enzyme was resistant to acarbose, a potent alpha-glucosidase inhibitor. The enzyme production was induced when A. niger was grown in starch medium containing the inhibitor. Antibodies against the precursor enzyme cross-reacted with the 54-kDa Taka-amylase protein of A. oryzae. It resembled Taka-amylase in most of its properties and also hydrolyzed starch to maltose of alpha-anomeric configuration. However, it did not degrade maltotriose formed during the reaction and was not inhibited by zinc ions.

Item Type:	Article
Uncontrolled Keywords:	Aspergillus niger Proteolytic processing Starch-hydrolyzing enzyme Acarbose Taka-amylase α-anomeric configuration
Subjects:	600 Technology > 08 Food technology > 16 Nutritive value > 05 Enzymes
Divisions:	Food Microbiology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	24 Sep 2010 09:27
Last Modified:	28 Aug 2018 04:45
URI:	http://ir.cftri.res.in/id/eprint/1902

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