Castavinols are

natural phenol In biochemistry, naturally occurring phenols are natural products containing at least one phenol functional group. Phenolic compounds are produced by plants and microorganisms. Organisms sometimes synthesize phenolic compounds in response to ecol ...

ic compounds found in

red wine Red wine is a type of wine made from dark-colored grape varieties - (red grapes.) The color of the wine can range from intense violet, typical of young wines, through to brick red for mature wines and brown for older red wines. The juice fro ...

s. These molecules are colorless and are derived from

anthocyanin Anthocyanins (), also called anthocyans, are solubility, water-soluble vacuole, vacuolar pigments that, depending on their pH, may appear red, purple, blue, or black. In 1835, the German pharmacist Ludwig Clamor Marquart named a chemical compou ...

pigments. Thus their formation leads to a

wine color The color of wine is one of the most easily recognizable characteristics of wines. Color is also an element in wine tasting since heavy wines generally have a deeper color. The accessory traditionally used to judge the wine color was the tastevi ...

loss.

Known molecules

* Castavinol C1 * Castavinol C2 *

Castavinol C3 Castavinol C3 is a castavinol, a natural phenolic compound found in red wine Red wine is a type of wine made from dark-colored grape varieties - (red grapes.) The color of the wine can range from intense violet, typical of young wines, thr ...

* Castavinol C4

References

External links

1996 : Les molécules des futurs millésimes Bordelais ? C. Castagnino, C. Chèze and J. Vercauteren, Bull. Soc. Pharm. Bordeaux, 1997, 136, pp. 19-36
(French) Flavonoids {{aromatic-stub