Development of a mutant strain of Aspergillus niger and optimization of some physical factors for improved calcium gluconate production.

Abstract excerpt

In the course of mutation studies of Aspergillus niger strain AB with ethylene imine (1:4000), a mutant A. niger AB 501, produced greater amount of calcium gluconate in the culture broth (88.0 g/lit) as against the parent strain (36.0 g/lit) by the surface culture method of fermentation. This mutant was then exposed to UV-rays and a mutant, A.niger AB 1801, was found to produce high calcium gluconate in the...

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