Origanum genus belongs to the family Lamiaceae (Labiate) contein of 42 species and 18 hybrids, widely distributed in Mediterranean areas, Eurasia and Northern Africa.(CHISHTI S., et. al., 2013). Origanum species have many activities related to medical, culinary and agricultural importance. Numerous studies on the chemical composition of oregano plants are reported in the literature.

The principal bioactive compounds identified in oregano essential oil are represented by thymol, carvacrol, γ-terpinene, p-cymenephenols,(CIULEI I., 1993; BEJAOUI A. et al., 2013; FIGIEL A., 2010, GONCEARIUC M, 2014). Chemical composition and concentrations of the components from essential oil depends on many factors such as genotype, geographical origin, climate, type and soil composition, orientation the development of the plant, harvest time and culture conditions (GARCÍABELTRÁN JM, 2016). Due to bioactive compounds Origanum species have many medicinal properties such as antibacterial, antifungal, antioxidant, antiinflammatory, antitumor, antiparasitic, antiviral, antihyperglycemic and anticholinesterase activities (GARCÍA-BELTRÁN JM and ESTEBAN MA, 2016).