Method for improving fermentation level of glucoamylase

The invention discloses a method for improving fermentation level of glucoamylase, which comprises the following steps of: producing the glucoamylase by fermentation of Aspergillus Niger, and adding growth and metabolism accelerator into fermentation culture solution during growth and propagation of the Aspergillus Niger, wherein the growth and metabolism accelerator mainly comprises vitamin B1, vitamin B2, nicotinic acid, nickel sesquioxide, cobalt chloride, ferric trichloride, ammonium molybdate, oleic acid, manganese sulfate, pantothenic acid, inositol and diammonium hydrogen phosphate. The method and the growth and metabolism accelerator can promote the growth and development of the Aspergillus Niger, improve the vital movement strength of microbes, increase the production of the glucoamylase, radically avoid various adverse effects on production and product quality due to insufficient nutrition during producing strains, and can totally provide various nutrients required for the growth and propagation sta