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Flavones, are a class of flavonoids based on the backbone of 2-phenylchromen-4-one (2-phenyl-1-benzopyran-4-one).
Flavonols are a class of flavonoids that have the 3-hydroxyflavone backbone. Their diversity stems from the different positions of the phenolic -OH groups. They are distinct from flavanols such as catechin, another class of flavonoids.
Flavonoids are synthesized by the phenylpropanoid metabolic pathway in which the amino acid phenylalanine is used to produce 4-coumaroyl-CoA. This can be combined with malonyl-CoA to yield the true backbone of flavonoids, a group of compounds called chalcones, which contain two phenyl rings. Conjugate ring-closure of chalcones results in the familiar form of flavonoids, the three-ringed structure of a flavone. The metabolic pathway continues through a series of enzymatic modifications to yield flavanones → dihydroflavonols → anthocyanins. Along this pathway, many products can be formed, including the flavonols, flavan-3-ols, proanthocyanidins (tannins) and a host of other various polyphenolics.
In enzymology, an isoflavone-7-O-beta-glucoside 6"-O-malonyltransferase is an enzyme that catalyzes the chemical reaction
Anthoxanthins are a type of flavonoid pigments in plants. Anthoxanthins are water-soluble pigments which range in color from white or colorless to a creamy to yellow, often on petals of flowers. These pigments are generally whiter in an acid medium and yellowed in an alkaline medium. They are very susceptible to color changes with minerals and metal ions, similar to anthocyanins. As with all flavonoids, they exhibit antioxidant properties, and are important in nutrition, and are sometimes used as food additives. Darkening with iron is particularly prominent in food products. They are considered to have more variety than anthocyanins. Some examples are quercitin.
Tricin is a chemical compound. It is an O-methylated flavone, a type of flavonoid. It can be found in rice bran and sugarcane.
The molecular formula C18H16O7 (molar mass: 344.31 g/mol, exact mass: 344.089603) may refer to:
The molecular formula C21H20O11 (448.38 g/mol, exact mass: 448.100561 u) may refer to:
The molecular formula C21H20O10 (molar mass :432.38 g/mol, exact mass: 432.105647 u) may refer to:
The chemical formula C15H10O7 (molar mass : 302.23 g/mol, exact mass : 302.042653) can refer to :
The molecular formula C15H10O3 (molar mass: 238.24 g/mol, exact mass: 238.062994) may refer to:
The molecular formula C16H12O6 (molar mass : 300.26 g/mol, exact mass : 300.063388) may refer to:
The molecular formula C16H12O7 (molar mass: 316.26 g/mol, exact mass: 316.058303) may refer to:
The molecular formula C27H30O14 (molar mass: 578.52 g/mol, exact mass: 578.163556) may refer to:
The chemical formula C16H12O4 (molar mass : 268.26 g/mol, exact mass : 268.073559) may refer to :
The molecular formula C18H16O8 (molar mass : 360.31 g/mol, exact mass : 360.084517 u) may refer to:
Syringetin is an O-methylated flavonol, a type of flavonoid. It is found in red grape, in Lysimachia congestiflora and in Vaccinium uliginosum. It is one of the phenolic compounds present in wine.
Brickellin is an O-methylated flavonol. It can be found in Brickellia veronicifolia.
The molecular formula C27H30O15, molar mass: 594.52 g/mol, exact mass: 594.15847 u, may refer to:
4',7-Dihydroxyflavone is a flavone. It is found in Medicago truncatula in relation with the root nodulation symbiont Sinorhizobium meliloti or in seeds of Sophora viciifolia.
