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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Isolation and characterization of lup-20(29)-ene-3, 28-diol (Betulin) from the stem-bark of Adenium obesum (Apocynaceae)
Tropical Journal of Pharmaceutical Research, Volume 11, No. 2, Year 2012
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Description
Purpose: To isolate and characterize chemical compound(s) of biological importance from the stembark of the plant, Adenium obesum. Methods: The stem-bark, after air-drying and powdering, was subjected to sequential hot-continuous extraction using petroleum spirit (60 - 80 oC) and methanol in that order. The petroleum spirit extract was chromatographed using thin layer and column chromatographic techniques. Recrystallization was used to further purify the isolated compound. Characterization of the isolated compound was by melting point, as well as by 1H and 13C nuclear magnetic resonance spectroscopy (NMR) and mass spectrometry (MS). Results: A triterpenoid (lup-20(29)-ene-3, 28-diol), commonly known as betulin, was isolated from the crude petroleum ether extract of the plant stem-bark. The isolated compound's melting point was 256 - 257 °C. The name, betulin, was assigned to this compound by comparison of its spectroscopic data from 1H-NMR, 13C-NMR and MS analysis with those of authenticated samples reported in the literature. Conclusion: A known compound, betulin (lup-20(29)-ene-3, 28-diol) was isolated from the petroleum ether extract of the stem-bark of Adenium obesum. © Pharmacotherapy Group.
Authors & Co-Authors
Tijjani, A.
Nigeria, Zaria
Ahmadu Bello University
Ndukwe, Iloegbulam G.
Nigeria, Zaria
Ahmadu Bello University
Ayo, Rachael Gbekele Oluwa
Nigeria, Zaria
Division of Agric College
Statistics
Citations: 57
Authors: 3
Affiliations: 2
Identifiers
Doi:
10.4314/tjpr.v11i2.12
ISSN:
15965996
e-ISSN:
15969827
Research Areas
Cancer
Environmental