Enzymolysis bean dreg powder and preparation method thereof

The invention relates to the technical field of bean dreg processing, in particular to enzymolysis bean dreg powder and a preparation method thereof.The preparation method comprises the following steps that firstly, bean dregs are taken, cellulase and protease are added for enzymolysis treatment, and an enzymolysis product is obtained; (S2) adding amino acid accounting for 2-5% of the mass of the bean dregs, reducing sugar accounting for 2-5% of the mass of the bean dregs and a garlic extract accounting for 1-2% of the mass of the bean dregs into the enzymolysis product, uniformly mixing, and then carrying out browning reaction to obtain a reactant; (S3) performing filter pressing on the reactant to remove water, and performing microwave drying until the water content of the reactant is lower than 8wt% to obtain a dried substance; and (S4) crushing the dried product, and sieving by using a grading sieve to obtain different stages of enzymolysis bean dreg powder with different particle sizes, so that the prepa