Comparing the Essential oil Components of Rosa damascena Mill. in the Several Extraction Methods

چکیده مقاله

Rosa damascena Mill is one of the important Rose species for production of aromatic compounds. The genus Rosa consists of more than 200 species. Among these Rosa damascena Mill R. damascena has been cultivated as garden rose in some west European collections but it is mainly grown for production of rose oil and rose water obtained after steam distillation of the rose flowers. It is considered that the oil rose originates from ancient Persia (today Iran) and has been later spread to Europe and Northern Africa. In this research, essential oil chemical composition of Rosa damascena obtained by three Extraction Methods were compared. Methods:In this research the essential of Rosa damascena Mill.extracted by three different (SDE, Clevenger and industrial extraction) methods. Then, essential oils were analyzed by GC and GC/MS, and finally the yield of essential oil and essential oil composition from these three methods were compared. For all three methods, samples were taken from Qamasr region. The Clevenger and SDE apparatus was manufactured by Ashke Shishe Company of Tehran and the industrial extraction of essential oils was carried out at Ashke Rose Company. Results:The result showed there is a significant difference between essential oil yields. The essential oil obtained fromSDEhadshowed the more performance. The main of essential oil components were observed in all samples, although the valuable compound, phenyl ethyl alcohol, found in the essential oils by SED method, was slightly higher than of the