Prof. Martin O Onani (Chemistry)

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Position:	Associate professor in Inorganic Chemistry
Department:	Department of Chemistry
Faculty:	Faculty of Natural Sciences
Qualifications:	PhD
	My publications in this repository
More about me:	here and here
Tel:	021 959 3050
Fax:	021 959 1400
Email:	monani@uwc.ac.za

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Antimicrobial activities of a novel biflavonoid and other constituents from Rhus natalensis
(Academic Journals, 2013) Mwangi, Henry M.; Mabusela, Wilfred T.; Abegaz, Berhanu M.; Martin, Onani O.
Phytochemical studies on Rhus natalensis root bark collected from Kenya led to the isolation and identification of a new biflavonoid (3-(1-(2,4-dihydroxyphenyl)-3,3-bis(4-hydroxyphenyl)-1-oxopropan-2- yl)-7-methoxy-4H-chromone-4-one (1), named rhuschromone, in addition to two other known compounds; 2',4'-dihydroxychalcone-(4-O-5''')-4'',2''',4'''-trihydroxychalcone (2) and 3-((Z)-heptadec-13- enyl) benzene-1,2-diol (3). The chemical structures of the isolated compounds were established using spectroscopic techniques including high field nuclear magnetic resonance (NMR). The total extracts and the isolated compounds were tested for their antimicrobial activities against different strains of bacteria.