flavan

flavan

[′fla·vən]
(biochemistry)
C15H14O 2-Phenylbenzopyran, an aromatic heterocyclic compound from which all flavonoids are derived.
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Major bioactive components of licorice root are triterpene glycosides of glycyrrhizin and flavonoids of flavan and chalcones (Asano et al.
Four flavan types of constituents (1-4) were isolated from DCM fraction of acetone extract.
The plant sources for the free-B-ring, baicalin, and the flavan, catechin, have nutritional value and have been used in medicinal preparations and in foods for many years, especially in Asian countries.
2007) and identification of three further acylated flavonoid glycosides (I-III) in Dryopteris villarii show that this fern has a number of acylated flavonoid glycosides which are generally absent from Dryopteris species with the exception of kaempferol 7-0-(6" succinylglucoside) in four Dryopteris species and a flavan acetate in Dryopteris filix-mas (L.
In the 60th minute Graham Stuart put Saunders away for the striker to draw Flavan before chipping over his head only to see Russ Perrett hook the ball off the line.
In addition kaempferol 7-O-(6"-succinyl-glucoside) was found in four Dryopteris species and an unusual flavan was isolated from Dryopteris filix-mas (L.
Northern Ireland's most in-demand shoe designer Anita Flavan came to the rescue at the Fate Awards last weekend - with a pair of killer heels for my missus.
The basic structural feature of flavonoids is the 2-phenylbenzopyrane or flavan nucleus, which consists of two benzene rings linked through a heterocyclic pyran ring (Brown 1980).
A prenylated flavan from Broussonetia kazinoki prevents cytokine-induced p-cell death through suppression of nuclear factor-KB activity.
They are present in the grape seed extracts and are composed of flavan units linked by [C.