Soybean peptide solid beverage and preparation technology thereof

The invention discloses the technical field of preparation of a vegetable protein solid beverage, and relates to a soybean peptide solid beverage and a preparation technology thereof. An ultrasonic-assisted enzymolysis ultrafiltration technique is used for purifying and preparing soybean meal oxidation-resistant peptide, and the soybean meal oxidation-resistant peptide is mixed with xylitol, vitamin C and green tea powder, so that the soybean peptide solid beverage is prepared. The method has the characteristics of being low in cost and simple in technology, the used reagent is safe and hygienic, the peptide yield is high, and mass production in factories is easy to realize. The prepared soybean meal oxidation-resistant peptide is uniform in color, free from obvious particulate matter, andclear and transparent after being soaked, has special fragrance of soybeans and tea, is unique in flavor, and is suitable for crowds of different age ranges to eat. Through implementation of the soybean meal oxidation-resist