Browsing by Author "Heiba, H. I."
Now showing items 1-6 of 6
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Chemical survey of some plants Growing in Qatar
Rizk, A.M.; Heiba, H.I.; Al-Easa, H.S. (1989 , Other)Fifty one plants growing in Qatar, belonging to thirty families, were surveyed for alkaloids, anthraquinones, coumarins, flavonoids, tannins and saponins. The medicinal uses of these plants arereported. -
Constituents of plants growing in Qatar
Rizk, A. M.; Heiba, H. I.; Ma'ayergi, H. A.; Batanouny, K. H. ( Elsevier , 1986 , Article)N/A. -
Constituents of plants growing in qatar x.* seasonal variations of the volatile oil of cymbopogon parkeri
Rizk, A. M. [عبد الفتاح محمد رزق]; Sandra, P.; Mashaly, M.; Heiba, H. I. ( Qatar University , 1985 , Article)The seasonal variation of the volatile oil of Cymbopogon parkeri Stapf. was studied. The oil content is higher during the hot dry season than during the humid hot season and the cold season. No qualitative differences among ... -
Constituents of Plants Growing in Qatar, Part XXXI: Lipid constituents of seventeen range plants growing in Qatar
Al-Easa, H.S.; Rizk, A.M.; Heiba, H.I. (2002 , Article)A preliminary study on the nutritive values of 17 Qatari range plants -
Evidence for some prostaglandins in Allium sativum extracts
Al-Nagdy, Sohair A.; Abdel-Rahman, M. O.; Heiba, H. I. ( John Wiley & Sons, Ltd. , 1988 , Article)Homogenized garlic (Allium sativum Linn.) was extracted successively with organic solvents and the prostaglandin-rich fraction separated. Fractionation of the extract with column chromatography was performed. TLC of the ... -
Heterocyclic Aminoacrylate Esters Of Potential Biological Activity
Abdel Rahman, M. O.; Heiba, H. I.; عبد الرحمن, محمد عمر; هيبة, حلمي إسماعيل ( Qatar University , 1985 , Article)This work describes the synthesis of N-substituted piperidyl 2-benzoxazole acrylates (la-d); 2-benzothiazole acrylates (2a-d); 2-furyl acrylates (3a-d) and 2-thiophene acrylates (4a-d). The esters of 3-quinuclidyl (Ie, 2e, ...