Abstract
Two species of kunci pepet, i.e. K. angustifolia and K. rotunda (Zingiberaceae), had different aromas. We had been analyzed volatile oils of two species by gas chromatography-mass spectrometry (GC-MS). The volatile oils had been got by water-steam distillation. The GC chromatograms of K. angustifolia showed 16 compounds, 5 compounds of them was main compounds, i.e. cycloproazulene (21.86%), alloaromadendrene (20.79%), cyclopropnaphtalene (11.02%), (-)β-elemenene (16.00%), caryophyllene (16.00%), and isobornyl acetate (11.02%). The GC chromatograms of K. rotunda showed 10 compounds, 2 compounds of them was main compound, i.e. tetradecane (26.85%) and benzylbenzoic (55.46%). Based on chemical constituent of volatile oils, the two species of Kaempferia had similarity of 25.00-37.50%. Alloaromadendrene of K. angustifolia and benzylbenzoic of K. rotunda could be used to distinguish the two species of Kaempferia.
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