. Amiarsi, D., Yulianingsih, and Sabari S.D. 2006. The effect of kinds and composition of solvent on the yield of rose essential oil. The objective of the study was to find out the best kind and composition of solvent for extraction of rose essential oil with good quality and quantity of concrete and absolute. The treatments were extraction by dipping flower in 3 kinds of solvent (hexane, petroleum ether, andisobuthyl ketone) with composition of flower-solvent (1:1, 1:2, and 1:3) for 12 hours. Solution was separated by filtering and manual pressing. Extract was vacuum evaporated to produce concrete. Concrete was dissolved in ethanol 96% and vacuum evaporated to get absolute rose essential oil. Observations were done on the yield of concrete and absolute, refraction index of absolute, and the composition of essential oil. The experiment was arranged in a factorial completely randomized design with 3 replications. The results indicated that the highest concrete and absolute rendement was obtained by methyl isobuthyl ketone solvent with composition of 1:3 flower-solvent, i.e. 1.35% and 0.74% respectively. Rose essential oil showed good quality with refraction index of 1.49 and 6 component of essential oil were identified, i.e. fenyl ethyl alcohol, citronellol, geraniol, methyl eugenol, α-pinena, and β–pinena.
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