Acid stable protease from mutants of genus Rhizopus

Details Acid stable protease from mutants of genus Rhizopus Acid stable protease from mutants of genus Rhizopus

1982-08-18

1984-09-25

Shapiro, Lionel M.

Chemistry: molecular biology and microbiology

Treatment of micro-organisms or enzymes with electrical or...

Modification of viruses

435223, 435254, 435939, C12N 1500, C12N 958, C12N 114, C12R 1845

Patent

active

044736444

ABSTRACT:
Process for the preparation of acid stable protease having a broad activity spectrum by culturing selected mutants of Rhizopus rhizopodiformis CBS 227.75 under aerobic conditions in a nutrient medium containing assimilable carbon and nitrogen sources, at a pH between 3 and 7 and at a temperature between 25.degree. C. and 50.degree. C., and separating the resulting protease enzyme; the mutants used in the process together with a process for preparation of the mutants.

REFERENCES:
patent: 3031380 (1962-04-01), Minagawa et al.
patent: 4062732 (1977-12-01), Lehmann et al.
Rose, editor Economic Microbiology, vol. 5, Microbial Enzymes and Bioconversions, 1980, pp. 142-143.

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