Grape Seed Extract By Shijiazhuang Jianhe Biotech Company

We are offering our customers a wide range of Grape Seed Extract, which are available following Specifications :-
-Proanthocyanidins 99% 95%
-Polyphenols 95% 90% 85% 80%;
-Oligomeric Proanthocyanidins 15% 20% 30% 40%;
-ORAC8000-18000umol/g (Brunswick Lab Tested),
-Water soluble GSE 8-10g dissolved in 100ml purified water 25oC
Latin Name: Vitis Viniferal L.
Appearance: Fine Red Brown Powder
Part of the Plant Used: Seed
CAS No.: 84929-27-1
Introductions:
Proanthocyanidin (PA or PAC), also known as procyanidin, oligomeric proanthocyanidin (OPC), leukocyanidin, leucoanthocyanin and condensed tannins, is a class of flavanols. Proanthocyanidins are essentially polymer chains of flavonoids such as catechins. One was discovered in 1936 by Professor Jacques Masquelier and called Vitamin P, although this name did not gain official category status and has since fallen out of usage. It was Masquelier who first developed techniques for the extraction of proanthocyanidins from certain plant species.