METHOD FOR MANUFACTURING FERMENTED FOOD USING PURPLE SWEET POTATO

摘要

PURPOSE: Provided is a method for manufacturing fermented food using purple sweet potato which has a large amount of minerals and vitamins and increased viscosity and where whey is not separated. CONSTITUTION: The method for manufacturing fermented food using purple sweet potato is comprised of the steps of: i) washing, boiling, and peeling purple sweet potato to obtain puree-form sweet potato materials; ii) mixing 100wt% of milk, 5-20wt% of milk powder, and 30-70wt% of the sweet potato materials to manufacture homogenized substrates; iii) sterilizing homogenized substrates for 90-110 deg.C for 10-30 minutes and cooling the substrates to 30-50 deg.C; and iv) inoculating 2-5%(w.v) of lactobacillus broth into substrates and fermenting the broth at 30-40 deg.C for 20-28 hours.