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, increases
nutrition of a fermentation product and also prolongs
shelf life of purple sweet potato product raw materials.