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FLAVONOIDE [1 record]

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Record 1 2008-06-16

English

Subject field(s)
  • Chemical Elements and Compounds
DEF

[A] class of nonnitrogenous biological pigments (biochromes) that includes the anthocyanins and the anthoxanthins.

CONT

Extensively represented in plants, the flavonoids are of relatively minor and limited occurrence in animals, which derive the pigments from plants.

French

Domaine(s)
  • Éléments et composés chimiques
CONT

Les flavonoïdes lato sensu sont des pigments quasiment universels des végétaux. Presque toujours hydrosolubles, ils sont responsables de la coloration des fleurs, des fruits et parfois des feuilles.

CONT

Tous les flavonoïdes - plus de 4 000 - ont une origine biosynthétique commune et, de ce fait, possèdent le même élément structural de base, à savoir l'enchaînement 2-phénylchromane. Ils peuvent être regroupés en une douzaine de classes selon le degré d'oxydation du noyau pyranique central, lequel peut être ouvert et recyclisé en un motif furanique (dihydrofuranone) [...]

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
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