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Flavonoids and phenolic constituents of leaves and stems of ballota undulata (Fresen.) benth [electronic resource].

By:

Ahmed, F.A

Language: English Summary language: Arabic Description: p.619-644Other title:

الفلافونيدات والمكونات الفينولية لاوراق وسيقان نبات الغصة.‪ [Added title page title]

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Bulletin of Faculty of Agriculture. Cairo University, 2004 v. 55 (4) [electronic resource].

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In: The Bulletin Faculty of Agriculture, Cairo University 2004.v.55(4)Summary: The chromatographic investigation of the phenolic and flavonoid content of Ballota undulata stems and leaves, collected from North Sinai, AI-Arish, at km 8, EI-Qusaima road, revealed that, the leaves contain four flavonoids namely, kaempferol, quercetin, rutin and myricetin beside five phenolic acids namely, 2, 3-dihydroxy benzoic acid (O-protocatechuic acid), ferulic, chlorogenic, p-hydroxy benzoic and p-coumaric acids. The stems of Ballota unduJata contain three flavonoids namely, kaempferol, quercetin and rutin beside four phenolic acids namely, 2, 3-dihydroxy benzoic acid (O-protocatechuic acid), ferutic, p- coumaric and chlorogenic acids. These phenolic and flavonoid compounds were isolated through polyamide column chromatography, purified by using a sephadex LH¬20 column and identified through Rrvalues and colour reactions, UV spectral data, IH-NMR, 13C-NMR spectra and mass spectrum. The leaves contain the highest percentages of total flavonoids.

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The chromatographic investigation of the phenolic and flavonoid content of Ballota undulata stems and leaves, collected from North Sinai, AI-Arish, at km 8, EI-Qusaima road, revealed that, the leaves contain four flavonoids namely, kaempferol, quercetin, rutin and myricetin beside five phenolic acids namely, 2, 3-dihydroxy benzoic acid (O-protocatechuic acid), ferulic, chlorogenic, p-hydroxy benzoic and p-coumaric acids. The stems of Ballota unduJata contain three flavonoids namely, kaempferol, quercetin and rutin beside four phenolic acids namely, 2, 3-dihydroxy benzoic acid (O-protocatechuic acid), ferutic, p- coumaric and chlorogenic acids. These phenolic and flavonoid compounds were isolated through polyamide column chromatography, purified by using a sephadex LH¬20 column and identified through Rrvalues and colour reactions, UV spectral data, IH-NMR, 13C-NMR spectra and mass spectrum. The leaves contain the highest percentages of total flavonoids.

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