A Comparative Investigation on the Composition of Rose(Rosa damascena Mill.) Oil Produced by Using Two Different Methods

Abstract

The essential oil of petals of Rosa damascena Mill. from two different factories (a private factory and Gulbirlik factory in Isparta) in Turkey were analysed by a combination of GC and GC-MS. Thirty two components were identified, accounting for 97.4 %from sample A (Gülbirlik factory in Isparta). The major constituents of sample A were citronellol (48.0 %), geranial (12.2 %), nonadecene (11.0 %), nonadecene (3.6 %), heneicosane (3.3 %) and methyl eugenol (2.8 %). The other components such as phenyl ethyl alcohol, geranyl acetate, linalool, geranial and farnesol were present in small amounts. 37 compounds were characterised, representing 93.4 % the R. damascena oil from Sample B (a private factory). The principal components detected in the oil of sample B were citronellol (43.0 %), geraniol (19.9 %), nonadecene (9.8 %), heneicosane (3.7 %), nonadecan-9-ene (3.1 %), farnesol (2.0 %), geranyl acetate (1.8 %) and methyl eugenol (1.9 %). The results show that it is need to harvesting to end-product storage and to establish for Standard composition and high quality oil.