COMPARATIVE GC/MS ANALYSIS OF ROSE FLOWER AND DISTILLED OIL VOLATILES OF THE OIL BEARING ROSE ROSA DAMASCENA

ABSTRACTThe accelerated and successful oil bearing rose breeding requires routine application of efficient procedure for analysis of flower volatiles, with capacity to extrapolate the obtained flower data to the volatile composition of the distilled rose oil. In the current study a procedure for solvent extraction and GC/MS analysis of rose flower and rose oil volatiles from oil bearing roses including Rosa damascena is presented. The procedure allows reliable identification of 68 volatiles in the rose flowers which are also detected in the distilled rose oil. The described procedure was further applied for comparative analysis of the flower and distilled rose oil volatiles from eight different genotypes of oil bearing roses. A data set consisting of ratios of the relative abundance of given volatile in the flower spectra to the relative abundance of the same volatile in the distilled rose oil spectra was generated. ANOVA test for a data subset of 27 volatiles detected in the flowers and rose oils of all ...