flavone


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to flavone: Flavonol, Flavonoids

fla·vone

 (flā′vōn′)
n.
1. A crystalline compound, C15H10O2, that is the parent substance of a number of yellow plant pigments.
2. Any of various derivatives of this compound, found especially in celery and parsley and usually occurring as glycosides.

flavone

(ˈfleɪvəʊn)
n
1. (Elements & Compounds) a crystalline compound occurring in plants. Formula: C15H10O2
2. (Botany) any of a class of yellow plant pigments derived from flavone
[C19: from German Flavon, from Latin flāvus yellow + -one]

fla•vone

(ˈfleɪ voʊn)

n.
1. a colorless, crystalline, water-insoluble compound, C15H10O2, the parent substance of a group of yellow pigments.
2. any derivative of this compound.
[< German Flavon (1895) < Latin flāvus]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.flavone - a colorless crystalline compound that is part of a number of white or yellow plant pigments
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
References in periodicals archive ?
The addition of inexpensive flavone glycosides or aglycones and increased concentration of potentially allergenic and genotoxic ginkgolic acids are reported forms of such adulteration.
Identification of flavone aglycones: the residue of the ether extract was dissolved in 2ml methanol at 50 C[degrees].
All of their nutritional products, SBT Single Source, SBT Flavone Capsules & SBT Seed Oil Capsules and SBT Fruit Oil (Omega 7) Capsules, are licensed by Health Canada.
For example, a US study found no association between risk of ovarian cancer and total flavonoid intake, but it found a decreased risk linked to dietary intake of apigenin, a flavone commonly found in celery.
The main chemical constituents of three different fractions (methanol, 80% aqueous ethanol and water) obtained from an essential oil-free infusion of extracts of Cymbopogon citratus leaves includes: Tannins, phenolic acids (caffeic and p-coumaric acid derivatives) and flavone glycosides (apigenin and luteolin derivatives) (16).
Chemical Groups R L St Fl Volatile oils ++ +++ +++ +++ Alkaloids ++ ++ ++ ++ Flavone aglycones + + + + Coumarins ++ +++ +++ +++ Tannins ++ ++ ++ ++ Saponins [+ or -] [+ or -] [+ or -] [+ or -] Flavone glycosides [+ or -] ++ ++ ++ Chemical Groups F&S Volatile oils +++ Alkaloids ++ Flavone aglycones + Coumarins +++ Tannins ++ Saponins [+ or -] Flavone glycosides ++ (+) present, (++) present, (+++) present, ([+ or -]) Traces, (-) absent R: Roots, L : Leaves, St : Steams, Fl : Flowers, F&S: Fruits and Seeds Table 2: Essential oil composition from Ruta montana (Clus.
Extraction solutions were filtered and were analyzed in terms of total flavone content (expressed in rutoside) and total polyphenols (as gallic acid) and antiradical capacity.
One of the 6 major subgroups of flavenoids is the subgroup of Flavone including Flavon, Apigenin and Luteolin, which all three exist in chamomile.
1) Standardized extracts, such as EGb761 or LI1370, contain 22-27% flavone glycosides and 5-7% terpene lactones (~3% ginkgolides and ~3% bilobalide).
radiata, which is found in tropical America and Japan, has been analysed and shown to contain active constituents including flavonoids, polyacetylenes, flavone glycosides, chalcones, aurones and phenylpropanoids (3).
In 2005 Japanese scientists reported that iron, magnesium and calcium work together with the plant compounds anthocyanin and flavone to produce the blue of cornflowers.
A New Flavone Glucoside, Apigenin 7-O-glucoside 4'-acetate and a New Fern Constituent, Quercetin 3-O-rhamnoside-7-O-glucoside from Dryopteris villarii.