학술논문

Chemical composition, antimicrobial and antioxidant activities of the essential oil of Lippia javanica leaves from Ethiopia.
Document Type
Article
Source
Journal of Essential Oil Research. Jun2016, Vol. 28 Issue 3, p221-226. 6p.
Subject
Lippia (Genus)
Essential oils
Chemical composition of plants
Anti-infective agents
Antioxidants
Language
ISSN
1041-2905
Abstract
The leaves ofLippia javanicaare used for the treatment of several skin diseases in Ethiopia. Forty-two components were identified and quantified, by GC–MS and GC–FID, comprising 98.9% of the total oil withcis-sabinene hydrate (20.3%) and limonene (13.9%) as major components.cis-Sabinene hydrate is reported here for the first time as a constituent ofL. javanicaleaf oil (Ethiopia). The essential oil and its two fractions were assessed for their possible antimicrobial activities against two bacterial strains (Bacillus cereusandKlebsiella pneumoniae) and one fungal pathogen (Cryptococcus neoformans) using the disc diffusion method.K. pneumoniaewas found to be the most susceptible bacteria to the oxygenated fraction (MIC < 5 g/mL). The antioxidant property of the oil was assessed by free radical scavenging (DPPH) assay, with IC50= 16.6 L/mL. These findings may support the traditional uses of the plant for the treatment of skin diseases. [ABSTRACT FROM AUTHOR]