Patent ID: 9204662
Filing Date: 2015-12-08
Classification: A23L

Abstract:
1. A method for producing clear, concentrated sweet potato juice, the method comprising: a) cleaning, peeling, crushing, and gelatinizing a raw material of sweet potatoes to yield a sweet potato paste, and squeezing the sweet potato paste to obtain a first dreg and a first juice; b) performing enzymolysis to part of the first dreg, and adding the part of the first dreg after enzymolysis to the sweet potato paste for squeezing; c) performing enzymolysis to the first juice, and filtering to obtain a second juice; d) combining the rest of the first dreg and sweet potato skins generated during the peeling process to obtain a sweet potato residue; e) extracting dietary fiber from the sweet potato residue; and f) adding the dietary fiber to the second juice and post-treating the second juice to obtain a clear, concentrated sweet potato juice; wherein extracting the dietary fiber from the sweet potato residue in e) comprises: