ISHS Acta Horticulturae 766: XXVII International Horticultural Congress - IHC2006: International Symposium on Ornamentals, Now!
EXTRACTION AND IDENTIFICATION OF CHEMICAL CONSTITUENTS OF THE ESSENTIAL OIL OF ROSA SPECIES |
| Authors: | A. Younis, A. Riaz, M.A. Khan, A.A. Khan, M.A. Pervez |
| Keywords: | essential oil composition, solvent extraction, hydro distillation, citronellol |
| Abstract:
Most of the rose species are used for ornamental purposes. However, a few of them exhibit the marked fragrance that is sought by perfumeries around the world. In present study four Rosa species i.e., Rosa species, Rosa damascena, Rosa centifolia, Rosa borboniana and Rosa 'Gruss an Teplitz' were used for essential oil through solvent extraction and hydro distillation. In present studies, through solvent extraction, Rosa damascena produced 39 g of concrete oil, which is 0.19% on petal weight basis. Rosa centifolia produced 30 g (0.15%) of concrete oil. Rosa borboniana and Rosa 'Gruss an Teplitz’ produced 19 g (0.09%) and 12 g (0.06%) of concrete oil respectively. When absolute oil from four Rosa species were compared it was found that Rosa damascena yields 29 g (0.14%) of absolute oil and the second highest yield 22 g (0.11%) of absolute oil was obtained through Rosa centifolia. Rosa 'Gruss an Teplitz' yielded least quantity of absolute oil. Through hydro distillation it is observed that from Rosa damascena yielded 31 g (0.155%) of concrete oil, and 26 g (0.13%) of absolute oil was recovered through distillation. Solvent extraction yielded more absolute oil (0.11%) as compared hydro distillation (0.075%) on petal weight basis. Through gas chromatography 13 different constituents were identified and characterized in rose essential oil. | |
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