Melese, Asmare (2007) Phytochemical Investigation of the Resins of Boswellia Species Collected from Kebtele Area in Agew-Awi (Gojjam). Masters thesis, Addis Ababa University.
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Abstract
The genus Boswellia is one of the 17 genera belonging to Bureseraceae family. In the course of this study leaves and barks of Boswellia species and its resins were collected from Kebtele area for botanical identification and chemical analysis. The species was identified by Dr. Kaj Vollesen (Kew Royal Botanical Garden, U.K.) as Boswellia papyrifera. The essential oils of the resins from Boswellia sp. (Kebtele) and B. papyrifera (obtained from Markato) were isolated by hydrodistillation and some of the components identified by GC. The major components Boswellia sp. (Kebtele) were verticilla-4(20),7,11-triene (BK1) (65%), octylacetate (4%) and other four unknown components whose compositions of the oil near to 4 %. This analysis gave a different result compared to the report of Dekebo et al. [26], Hamm et al. [9] and B. papyrifera (obtained from Markato) with octyl acetate (≥56 %) and noctanol (≥5 %) as their common major components and verticilla- 4(20),7,11-triene was absent in any of the three. Basar et al. (2001)[34] isolated and identified verticilla-4(20),7,11-triene the first time in the essential oil of B. carteri (6% of the oil). In this work it was also possible to isolate three compounds from the petrol extract of the resins: verticilla-4(20),7,11-triene, partially characterized diterpene (BK3) and uncharacterized white crystalline solid (BK6).
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry Q Science > QH Natural history > QH301 Biology |
| Divisions: | Africana |
| Depositing User: | Selom Ghislain |
| Date Deposited: | 03 Sep 2018 14:19 |
| Last Modified: | 03 Sep 2018 14:19 |
| URI: | http://thesisbank.jhia.ac.ke/id/eprint/4913 |
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