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Flowers of Inula viscosa (L.) plant (Inula genus , Asteraceae family), locally known as Taion, was collected from two different regions of Lattakia: the Jubt Barghal region (a mountainous area), the Qaya region (a coastal area), and the essential o il was extracted by Hydrodistillation using the Cleveger apparatus , where the weight percentage of essential oil stood at 1.26%,1.1% for both mountainous and coastal region ,respectively. The Chemical composition of essential oil obtained from flowers of Inula viscosa (L.) was analyzed by GC/MS . The essential oil of the mountainous area contained 60 components, 58 components of which were identified, that accounting for (97.98%) of total essential oil. The main component controlling was: 7-methoxy-5-ethoxy-2,2-dimethyl-2H-chromene (43.43%) The essential oil of the coastal region contained 33 components, 32 components of which were identified, that accounting for (98.31%) of total essential oil. The main components were: Linalyl propionate (19.70%), Eugenol (15.11%), n-Eicosane (9.27%).
This research was carried out to determine the quantity of essential oil extracted from myrtle Myrtus communis L leaves, by hydro distillation, and to identify the major and minor components, besides to determine its quantities in the essential oil by Gas Chromatography-Mass Spectrometry GC-MS. The samples were collected on November 2013 from eight different climatic locations (Aleppo, Zarzour, Alzenea, Katra AL-Rayhan, Al- Rayhana, Kasab, Mashta al-Holou and Mosiaf). The quantity and composition of the essential oil were estimated on the basis of the leaves dry weight. Oil quantity varied between the studied genotypes from different locations, which range from 0.46 to 0.55 ml, with non-significant differences. Eighteen compounds were identified in myrtle essential oil, and there were significant differences in 13 compounds. 1,8-Cineole performed the highest rate (18.85%) compared with other components, followed by α-Pinene (16.93%). While the lowest percentage was (0.31%) of Myrcene. The
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