Efficiency of Thymus vulgaris leaves extracts on some type of Pathogenic bacteria

Antibacterial activity of various concentrations of Thymus vulgaris leaves, extracted with distilled water and 90Vo ethanol were evaluated ln this study. Alcoholic extracts are more efficient on various pathogenic bacteria. ln general, all extracts in various concentrations with few exceptions are more efficacious on Gram positive bacteria than on Gram negative bacteria. The biggest inhibition zone recorded for 1000 ug/ml alcoholic extracts was (35 mm) against Staph. epidermidis. The limits of minimal inhibitory concentrations (MICs) of both extracts are between (400-1300)ug/ml.The efficiency of antibacterial activity of T. vulgaris extracts were compared with efficiency of standard antibiotics against the same bacterial types.