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- W2249785880 abstract "In the present study , the role of the phenolic compounds and the pollen grains as differential diagnosis of Senna senna plants grow in the Valleys and on the Mountains of Mekkah was demonstrated. Since Senna is a member of the anthracene group of purgatives, its active principles being derivatives of anthraquinone , the present work aimad also at investigating its phenolic compounds that have medicinal significance. Flavonoids were classified according to their chemical structure to three groups: O-Flavonols included quercetin rutin quercetin-3-glucoside quercetin-3-rhamnoside and kaempferol. O-Flavones were represented by apigenin. It was accompanied by its C-Flavone, vitexin. Both hydrolysable and condensed tannins were detected. Three phenolic acids were detected; 3,4-dihydroxybenzoic acid, 2,3-dihydroxybenzoic acid and 2,5-dihydroxybenzoic acid. Phloroglucinol ,(-)-epicatechin; the precursor of condensed tannins and (+)-catechin, the flavan desivative were also detected .The medicinal importance of the isolated phenolic compounds was given. . Generally the pollen grain of the studied taxa of the genus Senna growing in the vallyes and on the mountains of Makkah are radically symmetrical, isopolar, tricolporat and triangular trilobed with fossulate sculpture. The chemotaxonomical and palynological studies of the studied taxa of the genus Senna are not inagreement except for the flowers. There fore further detals of the flavonoid constituents and their distribution especially of those which are less wid spread, are to be studied because as understanding of their chemical properties will be helpful in the interpretation of their chemotaxonomical properties of Senna senna plants" @default.
- W2249785880 created "2016-06-24" @default.
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- W2249785880 date "2006-01-01" @default.
- W2249785880 modified "2023-09-23" @default.
- W2249785880 title "Chemotaxonomical and Palynological Studies on Senna senna L. (Fam. Fabaceae) Growing in the Vallyes and on the Mountains of Makkah." @default.
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