单词	flavone
释义	flavone /ˈfleɪvəʊn / noun [mass noun] Chemistry 1A 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. 1.1 [count 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. Origin Late 19th century: from Latin flavus 'yellow' + -one.
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