Oligonol is produced by the oligomerization of polyphenol polymers, typically proanthocyanidins, thus oligonol delivers higher levels of the oligomeric proanthocyanidins
compared to fruits and plant sources that contain mostly large molecular weight proanthocyanidins.
The phyto-chemical characterization of the sap has lead to the determination that oligomeric proanthocyanidins
(catechin, epicatechin, gallocatechin and epigallocatechin) at a different degree of polymerization constitute almost the 90% of its dry weight (Cai et al.
Greenblatt and Lee are impressed with treatment results using plant-based oligomeric proanthocyanidins
(OPCs) as "adjuvant therapy" in treating ADHD.
Grape Seed is also one of the richest sources of oligomeric proanthocyanidins
(better known as OPC).
These include oligomeric proanthocyanidins
(OPCs) and other bioflavonoids like catechin, epicatechin, phenolic fruit acids, and taxifolin.
Grape Seed is an excellent source of many powerful antioxidants such as oligomeric proanthocyanidins
(OPCs), vitamin E, flavonoids, linoleic acid, and resveratrol.
They have a high concentration of vitamin E, flavonoids, linoleic acid and oligomeric proanthocyanidins
Grape seed extract is a naturally occurring plant substance that contains a concentrated source of antioxidant nutrients known as oligomeric proanthocyanidins
more commonly known as OPCs.
Vitamin E, flavonoids, linoleic acid and compounds called procyanidins (also known as pycnogenols, and oligomeric proanthocyanidins
or OPCs) are highly concentrated in grape seeds.
OPC stands for oligomeric proanthocyanidins
, which means short chains of what comes before the anthocyanins.
Condensed tannins are large oligomeric proanthocyanidins
formed by condensation of hydroxyflavanol units (Hemingway, 1989).