Grape Seed Extract OPC(Proanthocyanidins)95% items for sale in bulk

Grape Seed Extract

•Latin Name: Vitis vinifera L.

•Part of Used: seed

•Specifications: OPC(Proanthocyanidins)95%

•Appearance: Dark purple fine powder

•Application: Medicine, food additive, dietary supplement

What is Grape seed Extract?

Grape seed extracts are industrial derivatives from whole grape seeds that have a great concentration of vitamin E, flavonoids, linoleic acid and phenolic procyanidins (also known as OPC or oligomeric procyanidins). Grape seed extract can be applied topically or taken internally, and is the best known source of antioxidants available.

Chemical constituents of Grape seed extract

The main ingredients are procyanidins and OPC

Grape seed extract is a heterogeneous mixture of gallic acid, monomers, dimers, trimers, tetramers, polymers and other oligomers. The basic building blocks are molecules of catechin, epicatechin, epicatechin gallate, gallic acid esters, glycosides and peptides. Due to the high degree of heterogeneity, several analytical techniques are required to characterize grape seed extract.