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I in mice brain: its possible prevention by selected antioxidants in Biochemistry and Molecular Biology J. 46 (6), 1998.


2- Pharmacognostical study of lotus lalambensis growing in S.A., SPJ., 16(2), April 2008.


Phytochemical investigation of the aerial parts of Lotus lalambensis Schweinf resulted in the isolation and identification of 20 known compounds. Liquid-Liquid fractionation of the crude extract followed by chromatographic purification resulted in the isolation of lupeol, β-sitosterol, oleanolic acid, β-sitosterol glucoside and stigmasterol glucoside from the petroleum ether fraction. The chloroform fraction afforded heptadecanol, kaempferol (1), kaempferol-3-O-α-L-rhamnoside (2), lotaustralin (3), epilotaustralin (4), linamarin (5), kaempferol-3,7-di-O-α-L-rhamnopyranoside (kaempferitin) (6) and ethyl- O-β-D-glucopyranoside (7). From the ethyl acetate fraction three simple rhamnosyl derivatives; butyl-O-α-L-rhamnopyranoside (8) methyl-O-α-L-rhamnopyranoside (9) and methyl-O-β-L-rhamnopyranoside (10) were obtained. Kaempferol-3-O-β-D-glucopyranoside- 7-O-α-L-rhamnopyranoside (11), kaempferol-3-O-α - [β-D-glucopyranosyl- (1""→2"')- L-rhamnopyranoside]-7-O-α-L-rhamnopyranoside (12), kaempferol-3-O-β- D-glucopyranoside-7-O-α-[β-D-glucopyranosyl-(1""→2")-L-rhamnopyranoside] (13) and the myo-inositol have been a search title: Studies on aluminium stimulated lipid peroxidation (+) D-pinitol (14) were isolated from the butanol extract. The total extract and different fractions were evaluated for their possible estrogenic, anti-inflammatory and anti-platelets aggregation activities. The chloroform extract showed the highest estrogenic activity, while the petroleum ether was the best in protection against inflammation induced by carrageenan. The strongest inhibition of platelet aggregations was observed with the aqueous fraction.


أدت دراسة الكيمياء النباتية للأجزاء الهوائية لنبات Lotus lalambensis إلى فصل والتعرف على التركيب الكيميائي لعشرين مادة معروفة سابقاً

وقد أسفرت تجزئة الخلاصة بين المذيبات المختلفة ثم تنقية الخلاصات الناتجة بإستخدام مختلف طرق الكروماتوجرافيا إلى فصل مواد β-sitosterol glucoside ، oleanolic acid ، β-stiosterol ، lupeol :stigmasterol glucosiekaempferol-3,7-di-O-α-L-rhamnopyranoside kaempferol (1) ، heptadecanolbuty  methyl -O- β- L- rhamnopyranoside (10) methyl -O- α -L- rhamnopyranoside (9)، rhamnoside (8)kaempferol -3- O- α -[β-D- ،kaempferol -3- O- β- D-glucopyranoside -7- O- α -L-rhamnopyranoside (11) :kaempfero -3 - O – β - D – ،glcopyranosyl- (1""-2"")- L-rhamnopyranoside] -7-O-α-L- rhamnopyranside (12)myo-inositol (+) D-pinitol ( و ( 14 glucopyranosyl - (1''"-2"") – L - rhamnopyranoside] (13)


3- Two new flavonol glycosides from the aerial parts of lotus lalambensis growing in S.A., Natural Product Science (NPS). Natural product Science. 14(2):86-89 2008

Abstract Phytochemical study of the aerial parts of Lotus lalambensis Schweinf resulted in the isolation and

identification of two new flavonol glycosides; kaempferol 3-O-(5"-acetyl)-apioside-7-O-α-L-rhamnopyranoside (1) and

kaempferol 3-O-α-[β-D-xylosyl-(1"" 2")-L-rhamnopyranoside]-7-O-α-L-rhamnopyranoside (2). Structures were

determined utilizing different physical, chemical, spectroscopic data including 2D-NMR experiments and HRFABMS.


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