One of the advantages of using esential oils as an alternative therapeutic is that it has a wide range of antimicrobial activity. Essential oils of plants are composed of a mixture of aldehydes, alcohols, terpenoids and other compounds. Also currently the plant products have found wide application as alternatives to conventional therapy and food preservation. The essential oils are substances obtained from plant materials as flowers, leaves, fruits, branches, seeds, bark by different methods. The essential oils are secondary metabolites produced by plants in order to provide a defense function or attraction. Its range of action extends to both Gram negative as Gram positive bacteria and the antibacterial mechanisms are varied.