Constituents of Essential Oils from the Leaves of Paramignya trimera (Oliv.) Guillaum from Vietnam

The essential oil from the leaves of Paramignya trimera (Oliv.) Guillaum was obtained by hydrodistillation and analysed by Gas Chromatography-coupled with Mass Spectrometry (GC/MS) for the first time. A total of forty-three components were identified accounting for 89.5 % of the oil. This oil was dominated by sesquiterpene hydrocarbons (39.6 %) and oxygenated sesquiterpenes (41.7 %). The major constituents of the P. trimera essential oil were determined as β-caryophyllene (10.5 %), β-caryophyllene oxide (9.9 %), 7-epi-α-eudesmol (7.6 %), and γ-muurolene (6.8 %).