Flavan-4-ol
Encyclopedia
The flavan-4-ols are flavone-derived alcohol
s and a family of flavonoids. Flavan-4-ols are colorless precursor compounds that polymerize to form red phlobaphene
pigments. They can be found in the sorghum. Glycosides (abacopterins A, B, C and D together with triphyllin A and 6,8-dimethyl-7-hydroxy-4‘-methoxyanthocyanidin-5-O-β-d-glucopyranoside) can be isolated from a methanol
extract of the rhizomes of Abacopteris penangiana
.
is an enzyme that uses (2S)-flavan-4-ol and NADP+ to produce (2S)-flavanone
, NADPH, and H+.
Alcohol
In chemistry, an alcohol is an organic compound in which the hydroxy functional group is bound to a carbon atom. In particular, this carbon center should be saturated, having single bonds to three other atoms....
s and a family of flavonoids. Flavan-4-ols are colorless precursor compounds that polymerize to form red phlobaphene
Phlobaphene
Phlobaphenes can be defined either as the reddish colored phenolic substances extracted from plant that are alcohol soluble and water insoluble or the reddish colored, water insoluble products that result from treatment of tannin extracts with mineral acids .The name phlobaphen come from the Greek...
pigments. They can be found in the sorghum. Glycosides (abacopterins A, B, C and D together with triphyllin A and 6,8-dimethyl-7-hydroxy-4‘-methoxyanthocyanidin-5-O-β-d-glucopyranoside) can be isolated from a methanol
Methanol
Methanol, also known as methyl alcohol, wood alcohol, wood naphtha or wood spirits, is a chemical with the formula CH3OH . It is the simplest alcohol, and is a light, volatile, colorless, flammable liquid with a distinctive odor very similar to, but slightly sweeter than, ethanol...
extract of the rhizomes of Abacopteris penangiana
Abacopteris penangiana
Abacopteris penangiana is a fern species in the genus Abacopteris.Flavan-4-ols glycosides, abacopterins A, B, C and D together with triphyllin A and 6,8-dimethyl-7-hydroxy-4‘-methoxyanthocyanidin-5-O-β-d-glucopyranoside, can be isolated from a methanol extract of the rhizomes of A....
.
Metabolism
Flavanone 4-reductaseFlavanone 4-reductase
In enzymology, a flavanone 4-reductase is an enzyme that catalyzes the chemical reaction-flavan-4-ol + NADP+ \rightleftharpoons -flavanone + NADPH + H+...
is an enzyme that uses (2S)-flavan-4-ol and NADP+ to produce (2S)-flavanone
Flavanone
The flavanones are a type of flavonoids. They are generally glycosylated by a disaccharide at position seven to give flavanone glycosides.-List of flavanones:* Butin* Eriodictyol* Hesperetin* Hesperidin* Homoeriodictyol* Isosakuranetin* Naringenin...
, NADPH, and H+.