A colourless crystalline compound which is the basis of a number of white or yellow plant pigments.
A tricyclic aromatic compound; chemical formula: C₁₅H₁₀O₂‘Flavonoids are plant derivatives of flavone with various degrees of hydroxylation and glycosidic substitutions.’
- ‘The flavone apigenin, found in high concentrations in parsley, provides an effect similar to that of 13C - protecting the body from bad estrogens.’
- ‘It has been recently reported the presence in Valeriana of the flavone 6-methylapigenin and the flavanone glycoside hesperidin.’
- ‘Consisting of approximately 2,200 compounds, the flavonoid family of chemicals consists also of the closely related flavones, flavonones, and flavonols.’
- ‘Flavonoids are composed of different chemical classes such as flavones, isoflavones, flavonols, flavanols, flavanones, and chalcones.’
- 1.1count noun Any of the plant pigments of which flavone is the basis.‘In the pre-stages, when the base and stalk cells were not fully developed, Naturstoffreagent A gave an orange-yellow fluorescence to flavones.’
- ‘The secretory four-celled head showed up in the developing stage, becoming stained fluorescent orange with the Naturstoffreagent A which indicated flavones.’
- ‘Honeysuckle flowers contain flavonols, flavones, catechins, isoflavanones, and anthocyanins.’
- ‘Maysin accumulation is correlated with a phenotype termed silk browning, in which the cut ends of silks turn brown due to the oxidation of flavones.’
- ‘Related flavonoids (i.e. flavones, flavonoles, chalcones) also contribute to colour definition.’
Late 19th century from Latin flavus ‘yellow’ + -one.
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