Abstract

Oregano plant with the scientific name of Mentha longifolia L. and genius of Mentha is owned by the Lamiaceae family. In traditional medicine it is used to treat nausea, bronchitis, bloating and loss of appetite. It also has carminative, antispasmodic and anti-inflammatory properties. In this study, the chemical composition of Mentha native to Ilam Province was examined. Initially, the essential oil was extracted and analyzed with chromatography/ mass spectrometry (GC-MS). Based on the results obtained from the GC-MS method SMPE, it became clear that there were 55 active ingredients in the essential oil. Phytochemical analysis showed that beta-Phellandrene, α-PINENE, trans-Caryophyllene and β-Myrcene constituted respectively 19. 95, 17. 85, 10. 15 and 9. 15 of the ingredients of Oregano plant native to Ilam which most known composition of oregano isolated from Ilam Province plant was beta-Phellandrene (19. 95). © 2016, Sphinx Knowledge House. All rights reserved.