The same and different of anthocyanin and Procyanidin

Procyanidin is one of the main components in the grape tea polyphenol capsule, and it is a powerful antioxidant However, many people will confuse procyanidin with anthocyanin In fact, it is not the same substance as procyanidin, and there are many differences between them Procyanidins, also known as procyanidins, English name is oligomeric proantho cyanidins (OPC) It is a kind of polyphenol compound that can produce anthocyanins under heat and acid treatment It is currently internationally recognized as an effective natural antioxidant to eliminate free radicals in human body Generally, it is reddish brown powder, with slight gas and astringent taste, soluble in water and most organic solvents Proanthocyanidins belong to plant polyphenols The molecules are composed of catechins and epicatechins (gallic acid) molecules condensed with each other Different types of polymers, such as dimers, trimers and tetramers, are formed according to the number of condensation and the position of connection Decamer, among which two to four polymers are called oligomeric proanthocyanidins (OPC) and more than five polymers are called homopolymers Oligomeric proanthocyanidins (OPC) are the most active part of procyanidins The structural formula of partial dimer, trimer and tetramer In general, the components with polymerization degree less than 6 are called oligoprocyanidins, such as catechins, epicatechins, procyanidins B1 and B2, while the components with polymerization degree greater than 6 are called polymers It is generally believed that oligoprocyanidins in the extracts of medicinal plants are effective components, Anthocyanidin, also known as anthocyanin, is a kind of water-soluble natural pigment widely existing in plants and belongs to flavonoids It is also the main color substance in plant petals Most of the colors of fruits, vegetables and flowers are related to it Under the condition of different pH value of plant cell vacuole, the petals present colorful color In acid condition, it is red, and the depth of its color is positively correlated with the content of anthocyanin The basic structural unit of anthocyanin is 2-phenylbenzopyran type cation, i.e coloration unit There are more than 20 known anthocyanins, mainly in plants, such as pelargonidin, cyanidin, delphindin, peaonidin, petunidin and malvidin Anthocyanins are rarely isolated from the lower reaches of natural conditions, mainly in the form of glycosides Anthocyanins often form anthocyanins through glycosidic bonds with one or more glucose, rhamnose, galactose, arabinose, etc More than 250 anthocyanins are known to exist naturally The differences between anthocyanins and procyanidins are as follows: firstly, in terms of chemical structure, anthocyanins and procyanidins are two completely different substances, procyanidins belong to polyphenols and anthocyanins belong to flavonoids Procyanidins, also known as procyanidins, can be produced by heating in acid medium, so this kind of polyphenols is named procyanidins Secondly, there are also differences in color between the two substances: anthocyanin is a kind of water-soluble pigment, which is one of the main pigments forming the color of petals and fruits, and can change color with the acid and alkali of cell fluid The cell fluid is acid, red, and alkaline, blue Procyanidins are colorless and are composed of different amounts of catechins or epicatechins In addition, there are different regions between anthocyanins and procyanidins Proanthocyanidins are widely found in the skins, shells and seeds of plants, such as grape seeds, apple skins, peanut skins, and cranberries; anthocyanidins are widely found in blueberries, cherries, strawberries, grapes, blackcurrants, and mulberry seeds, among which cyanidin, orange Geranium pigment, and blue purple Delphinium pigment are common in nature The relationship between anthocyanins and procyanidins Both anthocyanins and procyanidins are flavonoids Both are based on three aromatic ring structures, and both are powerful antioxidants Anthocyanin is a natural anti-aging nutritional supplement It has been proved that it is the most effective antioxidant found by human beings Its anti-oxidation performance is 50 times higher than that of vitamin E and 200 times higher than that of vitamin C Its bioavailability to human body is 100% It can be detected in blood 20 minutes after taking it In recent years, with the report of antioxidant and physiological function of anthocyanins, anthocyanins as a kind of safe and non-toxic nutritional natural food pigment has attracted more and more attention Because of its nutritional and pharmacological effects, it has been widely used in health food, cosmetics, medicine, food additives and other fields Its market demand is also further expanding According to the statistics of German Analysis & realize Ag company, by 2013, the annual demand for anthocyanins in the world has reached 443 tons, and the global demand for anthocyanins will continue to increase in the future Anthocyanin extraction is affected by extraction technology and raw material supply, the number of extraction enterprises is not so many, market competition has not reached the intensity of other plant extracts For example, the blueberry anthocyanin extraction, the blueberry reserve in the greater Xinganling region accounts for 90% of China and 30% of the world, while the number of blueberry anthocyanin extraction enterprises in the greater Xinganling region is only three As the main blueberry anthocyanin extraction enterprise in the greater Xinganling region, the greater Xinganling lingebe Biotechnology Co., Ltd is also the leading blueberry anthocyanin extraction enterprise in China As the main blueberry anthocyanin extraction enterprise in China, great Xing'anling Lingbei Biotechnology Co., Ltd has successively undertaken "National Forest"