ANTIMICROBIAL ACTIVITIES OF ESSENTIAL OILS FROM Peperomia pellucida (Linn.) LEAF OBTAINED IN NIGERIA

A. O. Ogunmoye, I. A. Oladosu, O. C. Atewolara-Odule, O. O. Olubomehin, I. B. Onajobi, S. Tijani

Abstract


Peperomia pellucida (Linn.) is a shiny or silver coloured bush belonging to Piperaceae family. Ethno-medicinal uses of this plant has been applied for treating abdominal pain, abscesses, acne, boils, colic and fatigue. The essential oil was extracted from the air-dried leaves of P. pellucida by hydrodistillation method using a Clevenger apparatus. The essential oil obtained was light yellow with offensive odour and a yield of 0.30 v/w. Atotal of thirty (30) components were identified and the major constituents are Elemol (9.32%), Neointermedeol (8.35%), 1H-3a,7-Methanoazulene- (5.60%) and Bicyclo [2.2.1] heptanes,2,2,3-trimethyl (5.08%). Sesquiterpenes and oxygenated sesquiterpenes (52.71%) made up a significant portion of the leaf oil. The antimicrobial effects showed it has Minimum Inhibition Concentration (MIC) on Pseudomonas aeruginosa and Bacillus subtilis at 0.01% oil concentration having 7.0 mm and 9.3 mm zones of inhibitions; but MIC against Bacillus cereus was obtained at 0.1% concentration of the oil. The result of antifungal on Lasiodiplodia theobromae, Fusarium oxysporum and Aspergillus tamari different concentration of 1.0, 0.1, 0.01, 0.001 and 0.0001% showed that the essential oils from the plant has potent antifungal effects on the three fungi species. These results showed that essential oil from the plant could act as potential antimicrobial agent.

Keywords: Peperomia pellucida, Hydrodistillation, GC-Mass Spectroscopy


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Chemical Society of Nigeria