Strain improvement of Rhizopus oryzae for production of l(+)-lactic acid and glucoamylase |
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| Authors: | W Suntornsuk YD Hang |
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| Institution: | Department of Food Science and Technology, Cornell University, Geneva, NY, USA |
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| Abstract: | 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. |
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