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Appl Environ Microbiol. 1981 March; 41(3): 593-596

Induction, isolation, and characterization of aspergillus niger mutant strains producing elevated levels of beta-galactosidase.

ABSTRACT

An Aspergillus niger mutant strain, VTT-D-80144, with an improvement of three- to fourfold in the production of extracellular beta-galactosidase was isolated after mutagenesis. The production of beta-galactosidase by this mutant was unaffected by fermentor size, and the enzyme was also suitable for immobilization.

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