Toncer, OzlemKaraman, SengulDiraz, Emel2024-04-242024-04-2420101996-0875https://hdl.handle.net/11468/20542Seasonal variations of the essential oil of Origanum syriacum were analysed by GC/MS. Twenty five components were identified, independent of season, among which thymol was the main component with 46.70% in the summer and p-cymene was the main component with 62.18% in the early spring. From the other compounds occured in lower amounts, gamma-Terpinene ranged from 0.63 - 19.08% and its maximum level was observed in summer, alpha-terpinene varied between 0.67 - 4.85% and the maximum level detected in summer season, carvacrol values ranged from 0.73 - 8.90% with the maximal value spring. To obtain favourable phenol content of the oil, O. syriacum should be harvested in summer months.eninfo:eu-repo/semantics/closedAccessOriganum SyriacumSeasonal VariationEssential OilArticle41110591064WOS:0002803565000102-s2.0-77954491313N/AQ4