You are using an old browser that may not function as expected. For a better, safer browsing experience, please upgrade your browser.

Log in Become a Member


Phenols (polyphenols) are a group of water-soluble plant dyes with over 6,500 different species. They are found in fruits, flowers and leaves of plants. The flavonoids were discovered in the 1930s by the Nobel Prize winner Albert von Szent-Györgyi Nagyrapolt (1893-1986) and were initially called vitamin P. The name is derived from Latin Flavus (yellow), because flavonoids often, but not always, have a yellow colour. Most flavonoids are bound to the sugar types glucose or rhamnose, which are then called glycosides. The flavonoids are divided into seven groups: anthocyanidins (anthocyans), flavones, flavonols, flavanols, flavanonols and isoflavones.

The world's largest Lexicon of wine terms.

25,508 Keywords · 47,133 Synonyms · 5,310 Translations · 30,825 Pronunciations · 171,626 Cross-references
made with by our author Norbert F. J. Tischelmayer. About the Lexicon