Abstract
The essential oils from the leaves and rhizomes of Alpinia pahangensis Ridl., collected from Pahang, Peninsular Malaysia, were obtained by hydrodistillation, and their chemical compositions were determined by GC and GC/MS analyses. The major components of the rhizome oil were γ-selinene (11.60%), β-pinene (10.87%), (E,E)-farnesyl acetate (8.65%), and α-terpineol (6.38%), while those of the leaf oil were β-pinene (39.61%), α-pinene (7.55%), and limonene (4.89%). The investigation of the antimicrobial activity of the essential oils using the broth microdilution technique revealed that the rhizome oil of A. pahangensis inhibited five Staphylococcus aureus strains with minimum inhibitory concentration (MIC) values between 0.08 and 0.31 μg/μl, and four selected fungi with MIC values between 1.25 and 2.50 μg/μl.
Copyright © 2011 Verlag Helvetica Chimica Acta AG, Zürich.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Alpinia / chemistry*
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Anti-Infective Agents / chemistry*
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Anti-Infective Agents / isolation & purification
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Anti-Infective Agents / pharmacology*
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Bicyclic Monoterpenes
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Bridged Bicyclo Compounds / chemistry
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Bridged Bicyclo Compounds / isolation & purification
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Bridged Bicyclo Compounds / pharmacology
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Fungi / drug effects
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Gas Chromatography-Mass Spectrometry
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Humans
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Malaysia
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Microbial Sensitivity Tests
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Monoterpenes / chemistry
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Monoterpenes / isolation & purification
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Monoterpenes / pharmacology
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Mycoses / drug therapy
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Oils, Volatile / chemistry*
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Oils, Volatile / isolation & purification
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Oils, Volatile / pharmacology*
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Plant Leaves / chemistry
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Rhizome / chemistry
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Staphylococcal Infections / drug therapy
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Staphylococcus aureus / drug effects
Substances
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Anti-Infective Agents
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Bicyclic Monoterpenes
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Bridged Bicyclo Compounds
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Monoterpenes
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Oils, Volatile
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beta-pinene