The application discloses a preparation method of high-quality
bran raw materials, comprising the following steps: 1) washing,
drying, powdering, sterilizing and reserving wheat
bran; 2) adding
edible fungus seed liquid into the wheat
bran and uniformly mixing and fermenting to prepare high-quality bran raw materials. The application also discloses the high-quality bran raw materials obtained by the preparation method and application thereof. After
fermentation, the water
absorption index, water-
solubility index and swelling degree of the bran are significantly increased, wherein the water-
solubility index is increased by 277% at most, the total
phenol content is 5.91 times of that of the unfermented sample at most, the
alkyl resorcinol content is 1.55 times of that of the unfermented sample at most, and the
total antioxidant capacity of the
raw material is improved to 311.23 U / g, which is 5.73 times of that of the unfermented sample. Meanwhile, the fermented
raw material generates
alcohol aroma substance 4-ethyl
guaiacol, which further improves the quality of the
raw material.