Recognition of such health benefits of
catechins and procyanidins has led to the use of grape
seed extract as a dietary supplement (Laparra, Michaud
& Masquelier, 1979) Phenolic compounds, extracted
from twelve different varieties of grapes, showed antioxidant activity toward LDL oxidation in vitro (Mayer,
Ock-Sook, Person, Waterhouse & Franke, 1997