Flavonoids in Rosmarinus officinalis leaves - PubMed (original) (raw)

Flavonoids in Rosmarinus officinalis leaves

N Okamura et al. Phytochemistry. 1994 Nov.

Abstract

Three new flavonoid glucuronides, luteolin 3'-O-beta-D-glucuronide, luteolin 3'-O-(4"-O-acetyl)-beta-D-glucuronide, and luteolin 3'-O-(3"-O-acetyl)-beta-D-glucuronide, together with hesperidin, were isolated from 50% aqueous MeOH extract of the leaves of rosemary. The structures were established by chemical and spectroscopic methods. Their antioxidant activities were evaluated by a ferric thiocyanate method with hesperidin showing the greatest activity.

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