Method for extracting, separating and purifying anthocyanin from blueberry peel and residues

The invention relates to a method for extracting, separating and purifying anthocyanin from blueberry peel and residues and belongs to the technical field of agriculture and food science. Effective ingredients are separated and extracted from fruit processing waste residues, so the method is also relevant to three-waste utilization. According to the method, edible alcohol is used for extracting anthocyanin crude extracts from blueberry peel and residues at 45 to 50 DEG C, and in addition, AB-8 macroporous resin is used for separation and purification. The method provided by the invention has the characteristics that the technology is novel, the operation and the production are simple and convenient, the low cost is low, the yield is high, the environment-friendly effect is realized; and the utilization rate of blueberry fruits is improved, the content of the anthocyanin in the separated product is greater than or equal to 26 percent, the requirements of various function food, health care food, medicine and fo