Micro organisms   Antibacterial disc diffusion methods  DIZ : mm Antibacterial well diffusion methods DIZ : mm MIC (mg/ml) MBC (mg/ml)   Essential oil DMSO Gentamicin Tetra cycline Essential oil DMSO Gentamicin Tetra cycline Essential oil DMSO Gentamicin Tetra cycline Essential oil DMSO Gentamicin Tetra cycline Gram positive bacteria S. aureus 22 1 18 12 26 0 20   6.25 0 0.01 12.5 50   50 50 S.epidermdis 16 1 R R 18 0 R R 12.5 0 ≥ 4 R 25   R R MRSA                                 Gram negative bacteria E. coli 11 0 20 R 12 0 22 R 0.01 0 0.01 R 0.01   50 50

Table 2: Determination of the of essential oil antibacterial activity by agar diffusion methods and Minimal Inhibitory Concentration (MIC). MIC: Minimal Inhibitory Concentration; DIZ: Diameter of Inhibition Zone: mm; MBC: Minimal Bactericidal Concentration; DMSO: Dimethylsulphoxide as negative control.