from the root or stem of purple sweet potato. They are stable and have the functions of anti-
oxidation, anti-mutation, anti-tumor, liver protection, hypoglycemia, and anti-inflammation,
which confer them a good application prospect. Nevertheless, there is not a comprehensive
review of purple sweet potato anthocyanins so far. The extraction, structural characterization,
stability, functional activity, application in the food, cosmetics, medicine, and other industries …