flavonoids from the leaves of iranian linden; tilia rubra subsp. caucasica
نویسندگان
چکیده
background and objectives: plants belonging to the genus tilia l. (tiliaceae) are often tall beautiful trees which are considered for various medicinal potentials of their flowers and leaves. the present study was an attempt to investigate the phytochemical constituents of tilia rubra subsp. caucasica leaves from the hyrcanian forests of north of iran. methods: chromatography on silica gel (normal and reversed-phase) and sephadex lh20 was applied for isolation and purification of the compounds from the hydroalcoholic extract of the plant leaves. the structures of isolated compounds were elucidated using uv, 1h-nmr and 13c-nmr spectral analyses. results: four flavonoid glycosides, quercetin-3-o-β-d-glucoside-7-o-α-l-rhamnoside (petiolaroside), quercetin-3-o-α-l-rhamnoside (quercitrin), apigenin-7-o-β-d-glucoside (cosmosiin) and luteolin-7-o-β-d-glucoside (cynaroside) were isolated from t. rubra subsp. caucasica leaves, which have been previously documented for their various biological activities. conclusion: the results of this study introduc t. rubra subsp. caucasica as a source of bioactive flavonoid glycosides and highlight it as an appropriate option for further pharmacognostical studies.
منابع مشابه
Flavonoids from the leaves of Iranian Linden; Tilia rubra subsp. caucasica
Background and objectives: Plants belonging to the genus Tilia L. (Tiliaceae) are often tall beautiful trees which are considered for various medicinal potentials of their flowers and leaves. The present study was an attempt to investigate the phytochemical constituents of Tilia rubra subsp. caucasica leaves from the hyrcanian forests of north of Iran. Methods: Chromatography on Silica gel (nor...
متن کاملFlavonoids from the leaves of Iranian Linden; Tilia rubra subsp. caucasica
Background and objectives: Plants belonging to the genus Tilia L. (Tiliaceae) are often tall beautiful trees which are considered for various medicinal potentials of their flowers and leaves. The present study was an attempt to investigate the phytochemical constituents of Tilia rubra subsp. caucasica leaves from the hyrcanian forests of north of Iran. Methods: Chroma...
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This research was carried out with the aim of dormancy breakage and seed germination improvement in mature and immature seeds of T. rubra subsp. caucasica form angulata. The seeds were collected from middle altitude (500 a.s.l.) forests of Chamestan, north of Iran. Mature and immature seeds with pericarp were treated as 1) cold stratification (without pretreatment), 2) imbibed with NaOH (30%)+c...
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عنوان ژورنال:
research journal of pharmacognosyناشر: the iranian society of pharmacognosy
ISSN 2345-4458
دوره 2
شماره 3 2015
کلمات کلیدی
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