Abstract
Objective: Essential oils extracted from the leaf of Euodia suaveolens have been reported. However, there is no published data on comprehensive report on the chemical constituents of the essential oils and the methods utilized to extract the essential oils from the plant. This research aimed to reveal and determine the chemical constituents of essential oils from the leaf of E. suaveolens.
 Methods: Essential oils of leaf of E. suaveolens were extracted by steam distillation and were analyzed utilizing Gas Chromatography-Mass Spectrometry (GC-MS) methods.
 Results: The GC-MS analysis revealed the presence of twenty-five different chemical constituents from the essential oils. The main chemical constituents of essential oils extracted from E. suaveolens’ leaves were as follows menthofuran (50.38 %), p-mentha-1,8-diene (14.34 %), limonen (10.99 %), evodone (5.55 %), α-curcumene (4.65 %), globulol (1.88 %), longipinenepoxide (1.66 %), and linalool (1.40 %). This present research found three compounds, namely p-mentha-1,8-diene, globulol, and longipinenepoxide that have never been reported by any researchers working with this plant.
 Conclusion: The results showed that E. suaveolens contains essential oils that are potential to be explored further and utilized as medicinal products against some ailments.
Highlights
Indonesia has huge plant biodiversity that has been utilized by their ancestor in their daily life activities
In some areas such as Sepik, Papua New Guinea scrapping of leaf added with water was drank to relief cold; in Solomon island crushed leaves were used to treat boils, roots and leaves were mixed with Areca catechu nuts and lime as malaria treatment; in Pacific islands infusion of barks or leaves were utilized to relief fever, leaves were chewed to treat toothache and remedial bathing; leaf decoction was a favorite treatment to cure stomachache, fever, and menstrual illness; decoction of barks was more potent to relief stomach ulcers, reduce menstrual and childbirth pains; leaves and in florescenses were worn as a personal decoration for social occasions; the woods were used as house construction [1]
Euodia suaveolens has been very popular as mosquito repellent in Indonesia, against Aedes aegypti, mosquito species that became the vector of dengue fever [3, 4]
Summary
Indonesia has huge plant biodiversity that has been utilized by their ancestor in their daily life activities (ethnopharmaceutica). The plant was introduced to other places in Indonesia as ornamental and garden decorations In some areas such as Sepik, Papua New Guinea scrapping of leaf added with water was drank to relief cold; in Solomon island crushed leaves were used to treat boils, roots and leaves were mixed with Areca catechu nuts and lime as malaria treatment; in Pacific islands infusion of barks or leaves were utilized to relief fever, leaves were chewed to treat toothache and remedial bathing; leaf decoction was a favorite treatment to cure stomachache, fever, and menstrual illness; decoction of barks was more potent to relief stomach ulcers, reduce menstrual and childbirth pains; leaves and in florescenses were worn as a personal decoration for social occasions; the woods were used as house construction [1]. Some other researchers have been trying to prove its bioactive compounds as antibacterial l [9, 10]
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