flavanoleja
Flavanols, also known as flavan-3-ols, are a class of flavonoids, a broad group of polyphenolic compounds found in many plants. They exist as monomers—catechin, epicatechin, gallocatechin, and epigallocatechin—and as polymers called proanthocyanidins or condensed tannins.
Natural occurrence and dietary sources include tea (green and black), cocoa and chocolate, grapes and red wine,
Chemical properties and classification: flavanols have a saturated C-ring with a hydroxyl group at position 3.
Biosynthesis and plant function: flavanol biosynthesis arises from the phenylpropanoid pathway in plants, joining the flavonoid
Absorption, metabolism, and bioavailability: monomeric flavanols are partially absorbed in the small intestine, while larger polymers
Health implications and research status: flavanols exhibit antioxidant activity in vitro and have been studied for