Characterisation of a starch-hydrolysing enzyme of Aspergillus niger

Authors
Suresh, C Dubey, AK Srikanta, S Kumar, SU Karanth, NG
Citation
C. Suresh et al., Characterisation of a starch-hydrolysing enzyme of Aspergillus niger, APPL MICR B, 51(5), 1999, pp. 673-675
Citations number
16
Categorie Soggetti
Biotecnology & Applied Microbiology",Microbiology
Journal title
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
ISSN journal
01757598 → ACNP
Volume
51
Issue
5
Year of publication
1999
Pages
673 - 675
Database
ISI
SICI code
0175-7598(199905)51:5<673:COASEO>2.0.ZU;2-T
Abstract
A UV-induced mutant strain of Aspergillus niger (CFTRI-1105-U9) overproduce d a starch-hydrolysing enzyme with properties characteristically different from the known amylases of the fungus. The purified enzyme of 4.0 pI had an apparent molecular mass of 125 kDa and it dextrinised starch and then sacc harified the dextrins. Patterns of the enzyme activity on starch, resulting in glucose at 60 degrees C and glucose, maltose and maltodextrins at 70 de grees C as primary products, suggested significant applications for the enz yme in starch-processing industries.