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There are many differences between anthocyanins and procyanidins

Proanthocyanidins are one of the main components in the Portuguese tea polyphenols capsules and are a powerful antioxidant. However, many people would confuse procyanidins with anthocyanins. In fact, anthocyanins and procyanidins are not The same substance, there are many differences between the two. The Proanthocyanidins are also known as procyanidins. The English name is Oligomeric Proantho Cyanidins, abbreviated as OPC. It is a polyphenol compound that produces anthocyanins under hot acid treatment. It is currently recognized as an effective natural antioxidant that eliminates free radicals in the human body. . It is generally a red-brown powder, slightly gas, astringent, soluble in water and most organic solvents. Proanthocyanidins belong to the plant polyphenols. The molecules are condensed with each other by catechins and epigallocatechin (gallic acid) molecules. Different types of polymers are formed according to the number of condensations and the positions of the linkages, such as dimers and trimers. Body, tetramer, decamer, etc., among which two to tetramers are called oligomeric proanthocyanidins (OPC), and more than five polymers are called hypermers. The most functionally active part of each polymer procyanidins is the oligomeric procyanidins (OPC). Part of the dimer, trimer, tetramer structure formula. In general, components with a degree of polymerization of less than 6 are called oligomeric procyanidins, such as catechins, epicatechins, procyanidins B1 and B2, etc., while components with a degree of polymerization greater than 6 are called multimers. The oligomeric procyanidins present in plant extracts are the active ingredients. They have many biological activities such as antioxidation and free radicals.

Anthocyanidin, also known as anthocyanidin, is a natural water-soluble natural pigment widely found in plants. It belongs to flavonoids. It is also the main color material in the petals of plants. Most of the colors of fruits, vegetables, and flowers are related to them. The petal presents colorful colors under different pH conditions in the vacuole of plant cells. It is red under acidic conditions, and its color depth is positively correlated with the content of anthocyanins. It can be quickly measured by spectrophotometer and blue under alkaline conditions. The basic structural unit of anthocyanins is 2-phenylbenzopyran-type cations, ie, motifs. There are more than 20 types of anthocyanins currently known, mainly found in plants: Pelargonidin, Cyanidin or Cyanidin, Delphin or Delphindin, and Peony. Peonidin, Petunidin, and Malvidin. Anthocyanins in the free state under natural conditions are rare and mainly exist in the form of glycosides. Anthocyanins often form anthocyanins through glycosidic bonds with one or more glucose, rhamnose, galactose, and arabinose. More than 250 naturally occurring anthocyanins are known. 

The difference between anthocyanins and procyanidins, first from the chemical structure, anthocyanins and procyanidins are two completely different substances, procyanidins are polyphenols, anthocyanins are flavonoids. Procyanidins are also known as procyanidins, and anthocyanins can be produced by heating in acid medium. Therefore, these polyphenols are named procyanidins. The

Secondly, there are also differences in the color of two substances: Anthocyanin is a water-soluble pigment, and it is one of the main pigments that constitute the color of petals and fruits. It can change color with the pH of cell fluids. When the cell fluid is acidic, it turns red, and when the cell fluid is alkaline, it turns blue. Proanthocyanidins are colorless and are formed by combining different amounts of catechins or epicatechins. 

In addition, the area where anthocyanins and procyanidins are present is different. Proanthocyanidins are widely found in the skins, shells and seeds of plants, such as grape seeds, apple husks, peanut hulls, and cranberries; anthocyanins are widely found in blueberries, cherries, strawberries, grapes, black currant, and sangzi, etc. Among them, three kinds of purplish cornflower pigments, orange geranium pigments, and blue-violet delphinium pigments are common in the natural world.

Anthocyanin Anthocyanin Appearance Reddish brown to dark brown powder, slightly reddish-brown powder with special flavor, gas micro, astringent solubility soluble in water and ethanol soluble in water and most organic solvents Purity ≥ 25% (UV) ≥ 95% (UV ) 

The link between anthocyanins and procyanidins is that both anthocyanins and procyanidins are flavonoids, both based on three aromatic ring structures, both of which are potent antioxidants. The Anthocyanins are natural anti-aging nutritional supplements. Studies have shown that humans find the most effective antioxidants today. Its antioxidant properties are 50 times higher than vitamin E and 200 times higher than vitamin C. Its bioavailability to the human body is 100%, and it can be detected in the blood within 20 minutes after taking it. 

In recent years, anthocyanins have attracted attention as a safe, non-toxic, nutritive natural food pigment as reported on the study of the antioxidant properties and physiological functions of anthocyanins. Because of its nutritional and pharmacological effects, it has great application in health food, cosmetics, medicine, food additives and other fields. Its market demand is further expanding. According to statistics of Germany Analy & Realize ag, as of 2013, the annual demand for anthocyanin in the world reaches 443 tons, and the demand for global anthocyanin will continue to increase in the future.

 

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