Method for fermenting purple sweet potato pulp by using plant probiotics

The present invention discloses a method for fermenting purple sweet potato pulp by using plant probiotics and solves problems of poor flavor, high processing cost and serious nutrient loss in processing of purple sweet potato pulp products. The method specifically comprises steps of pretreatment, crushing, softening, cooking, enzymolysis, pulping, blending, primary sterilization and cooling, fermentation, centrifugation, degassing, homogenization, secondary sterilization and cooling, aseptic cold filling, etc. A probiotics fermentation technology is used, so that the purple sweet potato pulpproduces lactic acid and salt substances thereof with a fresh-keeping effect, produces better fermentation flavored and micro-organism-inhibiting substances, and the method improves fragrance and mouthfeel of the purple sweet potato pulp, at the same time effectively reduces sterilization conditions of the purple sweet potato pulp, saves costs, at the same time preserves nutrient components of purple sweet potatoes, incre