Article
Enhancement of beta-galactosidase productivity of Aspergillus niger NCIM-616.
The Journal of applied bacteriology - 1 Oct 1994
Rasouli I, Kulkarni P R
Abstract excerpt
A series of mutations was carried out with Aspergillus niger NCIM-616 as the parent strain. A mutant strain NG-4 with 28% increased beta-galactosidase productivity was produced with N-methyl-N-nitro-N-nitrosoguanidine (NTG) at 1500 micrograms ml-1 concentration and exposure time of 60 min. This mutant yielded a third generation u.v.-treated strain, UV-5 with a 117.6% increase in beta-galactosidase productivity...
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