This study aimed to model the kinetic of hydro-distillation of

Aquilaria malaccensis

leaves oil in order to understand and optimize the extraction process. In addition

this study

for the first time

aimed to identify the chemical compositions of the

A. malaccensis

leave-oil. By assessing both first-order kinetic model and the model of simultaneous washing and diffusion

the result indicated that the model of simultaneous washing and diffusion better describes the hydro-distillation mechanism of the essential oil from

A. malaccensis

leaves. The optimum time

solid to liquid ratio

and the heating power for extracting the highest amount of essential oil were found to be around 3 h

1:10 (g·ml

-1

)

and 300 W respectively. Yellow essential oil with a strong smell and a yield of 0.05 v/w was extracted by hydro-distillation Clevenger apparatus. Chemical compounds of the essential oil were analyzed using gas chromatography-mass spectroscopy (GC/MS)

which resulted in identification of 42 compounds that constitute 93% of essential oil. Among the identified components

Pentadecanal (32.082%)

9-Octadecenal

(Z) (15.894%)

and Tetradecan

al (6.927%) were the major compounds. Considering the fact that all the identified major components possess pesticidal properties

A. malaccensis

leaves can be regarded as a promising natural source for producing pesticides.