Study on the Monascus Pigment of Monascus Strains JF-02 Fermentation

[Objective] The aim was to study the fermentation technology of monascus pigment of monascus strains JF-02.[Method] Single factor experiment was carried out to study the influence of temperature,initial pH,culture time,different agricultural byproduct,and nitrogen source on monascus pigment in fermentation solution.Meanwhile,orthogonal experiment was conducted to get the optimal culture medium and cultivation condition.[Result] The optimal gene in the pigment of monascus pigment was 200 g/L of rice,30 g/L of sweet potato powder,10 g/L of glucose,15 g/L of monosodium glutamate,0.1% of zinc sulfate,and 0.1% of magnesium sulfate.The optimal culture condition was 30 ℃ and initial pH was 6.0.Fermentation time was 72 h,but when 24-L fermentation pot was used,culture time can last to 84 h.[Conclusion] The study provided theoretical basis for the development and application of monascus strains.