Lycium ruthenicum Murr proanthocyanidin product and preparation method thereof

Abstract

The invention relates to a lycium ruthenicum Murr proanthocyanidin product. The product is a pale purple pink powder product which is prepared from fresh lycium ruthenicum Murr as raw materials and contains 40% to 70% of oligomeric proanthocyanidins, 10% to 35% of high polymer procyanidins, and 10% to 40% of other impurities after being separated and purified. The invention also discloses a preparation method of the product. The invention adopts the membrane separation technique, has simple and quick method, not only avoids using toxicant organic reagent and acquires the product having stable and uniform property, but also efficiently lowers the producing cost and can adopt the raw materials of health care product which has an antioxidant function.

Description

technical field

[0001] The invention relates to a proanthocyanidin product and a preparation method thereof, in particular to a proanthocyanidin product of black fruit wolfberry and a preparation method thereof. Background technique

[0002] Proanthocyanidin, or OPC for short, is a bioflavonoid with a special molecular structure, soluble in water and most organic solvents, and has efficient anti-aging, anti-cardiovascular disease, and anti-cancer functions. Fatigue, improve memory and other effects, showing incomparably superior biological activity and safety. Lycium ruthenicum Murr. is a plant of the genus Lycium ruthenicum Murr. It is a common wild shrub in some parts of Northwest my country. Its berries are round and black-purple when ripe. %, the proanthocyanidin content of the dried fruit is 7.2%, which has a good market development prospect.

[0003] At present, the preparation of proanthocyanidin products mostly adopts the extraction of organic reagents, which is ene...