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.

Voices of our members

Andreas Essl

The glossary is a monumental achievement and one of the most important contributions to wine knowledge. Of all the encyclopaedias I use on the subject of wine, it is by far the most important. That was the case ten years ago and it hasn't changed since.

Andreas Essl
Autor, Modena

The world's largest Lexicon of wine terms.

25,898 Keywords · 46,879 Synonyms · 5,330 Translations · 31,235 Pronunciations · 179,521 Cross-references
made with by our author Norbert F. J. Tischelmayer. About the Lexicon