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Physicochemical Characterization and Antimicrobial Activity of the Constituents of Eugenia Jambolana Lam.

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dc.contributor.author Sigeron, Moslima Albalal Elzain
dc.date.accessioned 2013-11-10T09:25:38Z
dc.date.available 2013-11-10T09:25:38Z
dc.date.issued 2011-04-01
dc.identifier.citation Sigeron,Moslima Albalal Elzain.Physicochemical Characterization and Antimicrobial Activity of the Constituents of Eugenia Jambolana Lam/Moslima Albalal Elzain Sigeron;Daffala Mohamed Hag Ali.-Khartoum:Sudan University of Science and Technology,College of Science,2011.-97p. : ill. ; 28cm.-M.Sc. en_US
dc.identifier.uri http://hdl.handle.net/123456789/2135
dc.description Thesis en_US
dc.description.abstract In this study the seeds and leaves of the plant Eugenia jambolana, a traditional plant collected from Elkadaro area, Khartoum state, Sudan, was extracted with ethanol and water and the leaves were also hydrodistilled for volatile oil. Antimicrobial activity was conducted for the crude extracts and the isolated compounds. Phytochemical screening showed positive results for flavonoids, tannins, steroids for both extracts and positive for alkaloids for only ethanolic extract of the seeds. Three compounds designated F1, F2 and F3 were isolated utilizing chromatographic techniques from the ethanolic extract of the seeds, the ethyl acetate extract and the aqueous ethanolic extract of the leaves, respectively. Tentative structures were deduced for F1, F2 and F3 from IR, UV and MS as p-methoxyl benzoic acid (F1), 6-acetyl 3 ̀ , 5 ̀ -dimethoxy 5-hydroxy flavone (F2) and 7-acetyl 4 ̀ -ethoxy 3 ̀, 5 ̀, 6-trimethoxy -dihydroflavonol (F3), respectively. The seeds and the leaves crude extracts were found active when assayed against five bacterial and two fungi microorganisms. For pure structures F1 showed activity only against Bacillus subtilis and Staphylococcus aurous bacteria, while F2 and F3 possessed more antibacterial and antifungal activity. The volatile oil from the dry leaves of E. jambolana showed a complex mixture when analyzed by GC-MS. Thirty two compounds, most of them are terpenoids were identified when comparing their mass spectra with the spectrometer en_US
dc.description.sponsorship Sudan University of Science and Technology en_US
dc.language.iso en en_US
dc.publisher Sudan University of Science and Technology en_US
dc.subject Fugenics en_US
dc.title Physicochemical Characterization and Antimicrobial Activity of the Constituents of Eugenia Jambolana Lam. en_US
dc.type Thesis en_US


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