Abstract
In this paper, the chemical constituents of essential oils obtained from the hydrodistillation of three Goniothalamus species were being reported. The essential oils were analysed by using gas chromatography-flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC-MS). Linalool (17.6%), α-phellandrene (16.7%) and p-cymene (7.9%) were the dominant compounds in the leaf oil of Goniothalamus takhtajanii Ban while linalool (28.3%), p-cymene (12.7%) and α-phellandrene (9.2%) predominates in the stem oil. The major constituents of the leaf oil of Goniothalamus multiovulatus Ast comprised mainly of β-caryophyllene (32.0%) and α-humulene (18.4%) while the stem contained higher proportions of β-caryophyllene (36.3%), α-humulene (27.1%), germacrene D (14.4%) and bicyclogermacrene (10.2%). However, linalool (18.9%), δ-cadinene (15.5%), bicyclogermacrene (15.3%) and bicycloelemene (12.7%) in the leaf as well as bicyclogermacrene (18.9%), linalool (14.6%), δ-cadinene (14.1%), p-cymene (12.3%) and bicycloelemene (10.3%) in the stem were the abundant constituents of the oils of Goniothalamus wightii Hook.f. & Thoms. The chemical compositions of the three essential oils were being reported for the first time.
Published Version
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