Essential oil composition of Achillea millefolium growing in Darreh-shahr township

Achillea millefolium belongs to the Asteraceae family from genus Achillea. In this study, essential oils were extracted from all aerial parts via hydro distillation (HD) method by clevengerset. Using the gas chromatography/mass spectrometry (GC-MS) technique causes the chemicals component of the essential oil to be identified. About 41 components, which were identified, encompassed 97.66 percent of the whole essential oil. The essential oil yields as a result of hydro distillation. After drying, about 0.56 percent of Achillea millefolium was added to a balloon and then was connected to the clevenger apparatus (weight/weight) - 60 grams of plants was obtained (it has been based on dried materials). In essential oils of Achillea millefolium dihydrocarveol (34.97%), the umbelulone (16.65%), 1,8-cineole (14.94%), bornyl acetate (6.08%), chrysanthenyle acetate cis (5.24%), camphene (4.21%), para-cymene (3.29%) and ?-pinene (3.24%) were our major identified compounds. The purpose of this study is to identify the constituents of essential oils extracted from plants and also to determine the percentage of each compound in the essential oil of Achillea millefolium used as drug.