Table 1.

Oligopin® composition.

Constituents	Average content (%mass)	Method
Procyanidolic oligomers :	67–75	GPC
Dimers:	15–20
Trimers :	15–20
Tetramers and higher oligomers:	30–40
Total polyphenol	>96	HPLC
Catechin	4-10
Taxifoliol	0.5-4
Taxifoliol glucoside	3-8
Ferrulate glucoside	4-10
Gallic acid	0.1-1
Protocatechic acid	0.5-3
Caffeic acid	0.5-3
p-coumaric acid	0.3-2
Ferulic acid	1-5