Extraction and Phytoanalysis of Chemical Compounds of Eucalyptus globulus Leaf Native to Dehloran, Ilam Province, Iran by HS-SPME and GC-MS

Eucalyptus globulus Labill. belongs to the Myrtaceae family, which extracted essential oils uses for medicinal, nutritional, and ornamental purposes. The present study conducted to extract the essential oil of Dehloran native eucalyptus leaf and recognize its biochemical components by the HS-SPME method. The eucalyptus leaf collected from Dehloran city, Ilam province, in October 2019. The leaves were dried for 72 hours at standard temperature and powdered. The essential oils and their volatiles extracted by solid-phase microextraction in the head space (HS-SPME) and their biochemical components analyzed by GC-MS. The final results revealed that the essential oil includes 43 composites that 1,8-cineol with 51.25% was the most important chemical composition of Eucalyptus leaves essential oil. Camphor (9.58%), borneol (7.63%), and camphene (3.77%) were the other most important compounds identified. The major identified compounds were bicyclic monoterpenes, aromatic terpenoids, cyclic ether, and terpenes. It concluded that Eucalyptus culture in Dehloran, with a high amount of 1, 8-cineol has high pharmaceutical and healthful value.