Flavonoids from the flowers of Lantana camara L. with in vitro antioxidant activity
Lantana camara L., Family Verbenaceae commonly known as wild or red sage, is the most widespread species of this genus, growing luxuriantly in tropical, sub-tropical and temperate regions . L. camara is used in folk medicine as vulnerary, diaphoretic, carminative, antiseptic, antispasmodic and tonic and [2–3]. A phytochemical investigation of the aqueous-methanolic extract of its flowers had led to isolation of a new flavonoidal compound, apigenin 7-O-β-D-galacturonopyranosyl-(2→1)-O-β-D-galacturonopyranoside with the eleven flavonoids, luteolin 7-O-β-D-glucuronopyranosyl-(2→1)-O-β-D-glucuronopyranoside, apigenin 7-O-β-D-glucuronopyranosyl-(2→1)-O-β-D-glucuronopyranoside, vitexin, isovitexin, apigenin 7-O-β-D-galacturonopyranoside, luteolin 7-O-β-D-glucopyranoside, luteolin 7-O-β-D-galactopyranoside, luteolin 4'-O-β-D-glucopyranoside, apigenin 7-O-β-D-glucopyranoside, luteolin and apigenin. The aqueous methanolic of L. camara flowers and some compounds proved a significant antioxidant effect.
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