| 释义 |
Definition of flavone in English: flavonenoun ˈfleɪvəʊnˈfleɪvoʊn mass nounChemistry 1A colourless crystalline compound which is the basis of a number of white or yellow plant pigments. A tricyclic aromatic compound; chemical formula: C₁₅H₁₀O₂ Example sentencesExamples - It has been recently reported the presence in Valeriana of the flavone 6-methylapigenin and the flavanone glycoside hesperidin.
- Flavonoids are composed of different chemical classes such as flavones, isoflavones, flavonols, flavanols, flavanones, and chalcones.
- Consisting of approximately 2,200 compounds, the flavonoid family of chemicals consists also of the closely related flavones, flavonones, and flavonols.
- 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.
- 1.1count noun Any of the plant pigments of which flavone is the basis.
Example sentencesExamples - 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.
- Honeysuckle flowers contain flavonols, flavones, catechins, isoflavanones, and anthocyanins.
- Related flavonoids (i.e. flavones, flavonoles, chalcones) also contribute to colour definition.
- 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.
Origin Late 19th century: from Latin flavus 'yellow' + -one. Definition of flavone in US English: flavonenounˈflāvōnˈfleɪvoʊn Chemistry 1A colorless crystalline compound which is the basis of a number of white or yellow plant pigments. A tricyclic aromatic compound; chemical formula: C₁₅H₁₀O₂ Example sentencesExamples - The flavone apigenin, found in high concentrations in parsley, provides an effect similar to that of 13C - protecting the body from bad estrogens.
- Flavonoids are composed of different chemical classes such as flavones, isoflavones, flavonols, flavanols, flavanones, and chalcones.
- Flavonoids are plant derivatives of flavone with various degrees of hydroxylation and glycosidic substitutions.
- 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.
- 1.1 Any of the plant pigments of which flavone is the basis.
Example sentencesExamples - Honeysuckle flowers contain flavonols, flavones, catechins, isoflavanones, and anthocyanins.
- Related flavonoids (i.e. flavones, flavonoles, chalcones) also contribute to colour definition.
- 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.
- 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.
Origin Late 19th century: from Latin flavus ‘yellow’ + -one. |