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KMID : 0620720040100060325
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Natural Product Sciences
2004 Volume.10 No. 6 p.325 ~ p.329
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In vitro Inhibitory Activities of Essential Oils from Oenanthe javanica DC against Candida and Streptococcus species
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Shin Seung-Won
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Abstract
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The composition of essential oil from O. javanica was analyzed by gas chromatography-mass spectrometry. Using the broth dilution method and disk diffusion test, anti-microbial activities of the oil fraction and its main components were evaluated against various antibiotic-susceptible and resistant strains of pathogenic microorganisms. As a result of GC-MS analysis, 57 compounds, including α-rerpinolene (28.1%), dl-limonene (16.0%), γ-terpinene (10.3%), β-pinene (9.7%) and α-pinene (6.0%) were identified in the essential oil fraction. The essential oil fraction of O. javanica and its main components exhibited significant inhibitory activities, particularly against Candida albicans (antibiotic-susceptible strains) and Streptococcus pneumoniae (antibiotic- susceptible and resistant strains). The main components of the O. javanica oil fraction displayed different patterns of activity against the three tested Candida species as exemplified by the differential minimum inhibiting concentration (MIC) values. The disk diffusion test showed that the activities were dose dependent.
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KEYWORD
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Oenanthe javanica, essential oil, antifungal, Candida albicans, Streptococcus pneumoniae
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