Preparation and use method of novel monascus pigment fermentation aid

The invention discloses a preparation method and a use method of a novel monascus pigment fermentation aid, and belongs to the technical field of biology, the novel monascus pigment fermentation aid comprises folic acid and L-aspartic acid, and the novel monascus pigment fermentation aid comprises the following components in percentage by mass: 50-60% of folic acid and 40-50% of L-aspartic acid. According to the monascus pigment fermentation aid disclosed by the embodiment of the invention, an actual test result shows that the monascus pigment fermentation aid is added into seed fermentation liquor in the early stage of fermentation and is co-cultured, so that the yield of pigment can be increased by reducing the expression quantity of an MpigE gene, and the industrial efficiency is improved; according to the application method of the fermentation aid powder in the embodiment of the invention, the fermentation aid powder is added into a fermentation seed solution, so that the yield of pigments after fermentat