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《Journal of Fujian Normal University(Natural Science Edition)》 2009-03
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Screening of Mutant Overproducing L-tryptophan with Sulfonamide Resistance Method and Optimization of the Fermentation Conditions

LI Yang,LIU Feng*,LU Long-di(College of Life Sciences,Fujian Normal University,Fuzhou 350108,China)  
A sulfonamide resistant mutant FC523(Phe-+Tyr-+5MTr+SGr)was obtained from Corynebacterium glutamicum FC22(Phe-+Tyr-+5MTr)by UV treatment.The culture medium was optimized by orthogonal design experiment and fermentation conditions were studied by single factor experiment.Tryptophan was accumulated to 8.6 g/L by strain FC523 at the optimized conditions.
【CateGory Index】: TQ921
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