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The objective of this study is to extract, screen, isolate, and characterize the chemical constituents of Tephrosia vogelii and Commiphora schimperi. In the course of this study the stem bark of T. vogelii and resin of C. schimperi were collected from Areka Agricultural Research institute, Wolaita Zone and Konso, Gamo Gofa Zone, respectively. Phytochemical screening of the crude extract of T. vogelii revealed the presence of tannins, saponins, flavonoids, and terpenoids. Chromatographic separation of the methanolic crude extract of T. vogelii yielded the compound 8 (4, 5-dihydro-5, 5-dimethyl-4-oxofuran-3yl)-5-hydoxy-7-methoxy-2-phenyl-4H-chrome-4-one. The essential oil from the resin of C. schimperi was isolated by hydro-distillation and some of the components identified by means of GC and GC/MS analysis. The main components of the essential oil from C. schimperi were: α-pinene (73%) and β-pinene (17%). The resin was also subjected to extraction by petrol, ethyl acetate, and methanol. The components of C. schimperi were isolated using chromatographic techniques and attempts were made to identify the isolated substances. Analysis of the petrol extract of the resin of C. schimperi showed to be an excellent source of the industrially important fragrant compounds, α- and β-pinene. The structures of the isolated compounds were characterized by comparing IR, 1H NMR, and 13C NMR chromatographic data of the compounds with literature. |
