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Strain improvement of Rhizopus oryzae for production of l(+)‐lactic acid and glucoamylase
Author(s) -
Suntornsuk W.,
Hang Y.D.
Publication year - 1994
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1994.tb00956.x
Subject(s) - rhizopus oryzae , library science , strain (injury) , lactic acid , rhizopus , food science , microbiology and biotechnology , biology , computer science , fermentation , bacteria , genetics , anatomy
Thirty‐eight l(+)‐lactic acid‐overproducing mutants were isolated by mutagenizing a parent strain of Rhizopus oryzae NRRL 395 with u.v. and/or N ‐methyl‐ N '‐nitro‐ N ‐nitrosoguanidine. Three mutants, 1N1, 3N4 and 3N6, were found to yield significantly more l(+)‐lactic acid in a rice medium than the parent strain. Of the mutants examined, only mutant 3N4 produced more glucoamylase than the parent strain.