Constituents of Essential Oils from the Leaf of Amomum aculeatum Roxb.

Essential oil obtained by hydrodistillation from the leaf of Amomum aculeatum Roxb. grown in Vietnam were analysed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC-MS). Monoterpene hydrocarbons (57.4 %) and sesquiterpene hydrocarbons (30.1 %) were the main class of compounds present in the oil. The main compounds were identified to be limonene (20.8 %), valencene (18.0 %), alpha-phellandrene (8.7 %), alpha-pinene (6.9 %) and bsequiphellandrene (6.1 %). The volatile oil contents were being reported for the first time.