Extraction method for blueberry anthocyanin

Abstract

The invention belongs to the technical field of extraction of natural products and in particular relates to an extraction method for blueberry anthocyanin. The extraction method comprises the following steps: firstly, crushing blueberries into blueberry pulp; then, adding a biological complex enzyme for enzymolysis; carrying out ultrasound-assisted extraction, centrifuging and collecting supernatant, carrying out ultrafiltration concentration and spray drying to obtain the anthocyanin. The biological complex enzyme is a compound of acidic cellulase, acidic sucrase and tannase. The blueberry anthocyanin extracted by adopting biological complex enzyme enzymolysis and ultrasound-assisted extraction manners is high in purity and low in cost, and the operation is simple and convenient; an extraction process is green and environmentally friendly; an anthocyanin product has no residues of toxic chemical reagents and the obtained anthocyanin is safer and more reliable; the extraction efficiency of the anthocyanin reaches 90 percent or more.

Description

technical field

[0001] The invention belongs to the technical field of natural product extraction, and in particular relates to a method for extracting blueberry anthocyanins. Background technique

[0002] Anthocyanins are a class of water-soluble pigments that widely exist in plants and belong to flavonoid compounds. Anthocyanins, like other natural pigments, are non-toxic and have no side effects, have high safety performance, natural coloring and tone, and have health care functions. Anthocyanins are pure natural anti-aging nutritional supplements, and their antioxidant properties are 50 times higher than vitamin E and 200 times higher than vitamin C.

[0003] Blueberry anthocyanins are the most effective antioxidant substances found in nature, which can be detected in the blood 20 minutes after taking it. Blueberry anthocyanins can not only prevent the early generation of wrinkles, but also maintain normal cell connections, stabilize blood vessels, enhance blood circul...