The present application belongs to the technical field of microbial
fermentation, and particularly relates to a
fermentation method for increasing the
titer growth rate of aureomycin after 90 hours of
fermentation and application thereof. The present application achieves the effect of comprehensively regulating the fermentation process of aureomycin by regulating the seed
inoculation amount of
Streptomyces aureofaciens, the total
sugar concentration after seed tank depletion, the seed age and pH value after seed transfer, the ratio of slow-acting organic
nitrogen to readily available organic
nitrogen in the fermentation medium, the total
sugar concentration after fermentation tank depletion and the total
sugar concentration in the fermentation process, thereby increasing the
titer growth rate of aureomycin after 90 hours of fermentation. Further, the method can control the amount of sugar supplement in the fermentation process to a certain extent without being too high, which is conducive to reducing
material consumption, while avoiding premature autolysis of
mycelium in the fermentation process, which is conducive to reducing the difficulty and cost of
sewage treatment. In addition, the method is simple to operate, has strong popularization, has no side effects on fermentation production and product quality, and achieves good economic and ecological benefits.