Essential Oil Composition and Antibacterial Activity of Colubrina Asiatica (L.) Brong
Keywords:
Colubrina asiatica, essential oil composition, α-cubebene and antibacterial activityAbstract
The essential oil obtained from the fresh leaves of Colubrina asiatica (L.) Brong. by hydrodistillation was analysed by gas chromatography and gas chromatography-mass spectro metry. The essential oil content quantified showed presence of 10 compounds in which, dodecamethylcyclohexasiloxane has showed the highest (17%) and Dehydro-N-[4,5-methylenedioxy2-nitrobenzylidene]-tyramine showed the lowest percentage (1.9%).α-cubebene, comprised of 14% .The in vitro antimicrobial activity of the leaf oil was studied by MIC technique. The leaf essential oil was tested against both Grampositive and Gram-negative bacterial strains. Antibacterial activity was significant against Gram positive bacterium, Staphylococcus aureus.
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