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Lexicon

The largest wine encyclopedia in the world with 26,382 Terms.

0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Quercetin

Phenolic compound (polyphenol) belonging to the large group of flavonoids (plant pigments) as a glycoside bound to sugar. The yellow pigment, also known as quercitin or quercetin, is found particularly in the bark of the American larch (Quercus tinctoria), as well as in apples, broccoli and onions. It is the most common flavonoid colouring agent in grapes. The red wine varieties Cabernet Franc, Cabernet Sauvignon, Nebbiolo and Pinot Noir are particularly rich in quercetin. The substance is formed particularly in intense sunlight. Quercetin also passes from the wood into the wine during barrel ageing. The substance has an antioxidant effect and also has a positive, health-promoting effect as a radical scavenger. However, higher levels of quercetin in wine can also lead to headaches.

This page was last modified at 5 January, 2024 at 22:51.

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Thorsten Rahn

The Wine lexicon helps me to keep up to date and refresh my knowledge. Thank you for this Lexicon that will never end in terms of topicality! That's what makes it so exciting to come back often.

Thorsten Rahn
Restaurantleiter, Sommelier, Weindozent und Autor; Dresden

The world's largest Lexicon of wine terms.

26,382 Keywords · 46,989 Synonyms · 5,323 Translations · 31,716 Pronunciations · 202,680 Cross-references
made with ♥ by our author Norbert F. J. Tischelmayer. About the Lexicon

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