Influence of media composition on the production of alpha-amylase and amyloglucosidase by a strain of Aspergillus niger.

Ramachandran, N. and Sreekantiah, K. R. and Murthy, V. S. (1979) Influence of media composition on the production of alpha-amylase and amyloglucosidase by a strain of Aspergillus niger. Starch/Starke, 31 (4). 134-138, 18 ref..

PDF Starch_Starke_1979_31_4_134-138.pdf - Published Version Restricted to Registered users only Download (506kB)

Abstract

The nature of thermophilic amylolytic enzymes produced by a strain of Aspergillus niger Van Tieghem was influenced by the medium composition. While glucose, maltose, dextrin and soluble starch induced the production of amyloglucosidase, pectin and sodium polypectate induced almost exclusively the formation of alpha-amylase. Alkali ions suppressed the formation of amyloglucosidase; NH4NO3, (NH4)2HPO4 and ammonium tartrate were good inorganic N sources, while casein, groundnut protein and corn steep liquor were good organic N sources. Deletion of the growth factors pyridoxine hydrochloride and inositol suppressed enzyme production while absence of riboflavin had the opposite effect.

Item Type:	Article
Uncontrolled Keywords:	ASPERGILLUS-; alpha-amylases, Aspergillus niger synthesis of; amyloglucosidases, Aspergillus niger synthesis of; AMYLASES-; Aspergillus niger synthesis of alpha-amylases; GLUCOSIDASES-; Aspergillus niger synthesis of amyloglucosidases
Subjects:	500 Natural Sciences and Mathematics > 07 Life Sciences > 04 Microbiology > 04 Fungi 600 Technology > 08 Food technology > 16 Nutritive value > 05 Enzymes
Divisions:	Food Microbiology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	08 May 2012 10:50
Last Modified:	28 Dec 2016 08:36
URI:	http://ir.cftri.res.in/id/eprint/4429

Actions (login required)

View Item