GC-MS analysis of essential oil from Origanum vulgare L

Oregano, is widely used as a medicine and food. The essential oils of several oreganospecies have expectorant, antispasmodic, tonic, antiseptic, analgesic, antimicrobial,antifungic, antioxidant, germicidal and cytotoxic properties [1-5]. In the present work,Chemical composition of Origanum Vulgare L. which is belong to the family of Lamiaceaewas investigated. The air-dried ground aerial parts of Origanum Vulgare L. were subjectedto hydrodisillation. The resulting oil was analyzed by the gas chromatography/massspectrometry (GC-MS). A total yield of 0.5 ml of essential oil per 100 g of plant dry masswas obtained, and 18 compounds were identified, representing 89/49% of total oil. . Themain constituents were   Pinene (27/39%), Sabinene (13/51%),  Myrcene (7/57%),Delta-Cadinene (5/92%).