flavonoid

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Related to Flavan-3-ol: bioflavonoid

flavonoid

/fla·vo·noid/ (fla´vah-noid) any of a group of compounds containing a characteristic aromatic nucleus and widely distributed in higher plants, often as a pigment; a subgroup with biological activity in mammals is the bioflavonoids.

flavonoid

Herbal medicine
Any of a family of yellow pigments which are chemically similar to tannins and somewhat similar in use; flavonoids have been used for bruising, hay fever and menorrhagia. 

Nutrition
A family of biologically active polyphenolic compounds found in fruits (in particular in the pulp thereof), vegetables, tea and red wine, which are potent antioxidants and effective platelet inhibitors; a flavonoid-rich diet may protect against atherosclerosis and platelet-mediated thrombosis, due to flavonoids’ platelet-inhibition.

flavonoid

Bioflavonoid Nutrition Any biologically-active polyphenol found in fruits, especially in the pulp, vegetables, tea, red wine, which are potent antioxidants and platelet inhibitors

fla·vo·noid

(flāvō-noyd)
Metabolite from plant matter.

Flavonoid

A food chemical that helps to limit oxidative damage to the body's cells, and protects against heart disease and cancer.
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References in periodicals archive ?
2004) with a characteristic mixture of flavan-3-ols (including (-)-epigallocatechin (EGC), EGCG and epicatechin methyl gallate).
Previous work also found that flavan-3-ols were particularly susceptible to the slightly alkaline conditions of pancreatic digestion (Zhu et al.
However, the instability of flavan-3-ols in the CAGTE under in vitro digestion conditions raises the question of the effectiveness of circulating flavan-3-ols (especially at their low plasma concentrations) compared with other green tea components or their metabolites.
Flavan-3-ols undergo extensive biotransformation and pharmacokinetic evidence suggests that the parent polyphenols only attain sub-to-low-micromolar peak plasma levels in human or animal subjects following oral administration (Chow et al.
m/z 289 and 407) varies indicating that they represent different isomeric forms and that arise from variation in the positioning of monomeric flavan-3-ol units.
Flavan-3-ol, monomelic catechins (catechin and epica-techin), their monomethylated metabolites, and proantho-cyanidin dimers and pronathocyanidin trimers were detected using LC-MS/MS in the MRM mode.
Extracts prepared from the grape seeds contain a rich mixture of monomeric flavan-3-ols, phenolic acids and oligomeric proanthocyanidins.
It appears that phenolic grape extracts composed mainly of flavan-3-ols and flavonols are promising natural antimicrobial agents.
Flavonoids often occur in foods as a glycoside, except for flavan-3-ols.
b] Genistin > 1000 Flavan-3-ols (+)-Catechin > 1000 (-)-Epicatechin > 1000 Epigallocatechin > 1000 Epicatechin-3-gallate > 1000 Epigallocatechin-3-gallate > 1000 Other compounds Chlorogenic acid > 1000 Cyanidine chloride > 1000 (anthocyanin) Phloretin > 1000 (dihydrochalcone) Phloridin > 1000 Resveratrol (Stilbene) 7.