Efficiency of antibacterial agents extracted from Thymus vulgaris l. (lamiaceae)

Antibacterial activity of various concentrations of (leaves, flowers and mixtures) of Thymus vulgaris L. extracted with (distilled water and 90% ethanol) were carried out in this study. Alcoholic extracts are more efficient on various pathogenic bacteria and mixed extracts have a highly antibacterial activity. In 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 μg/ml of mixed alcoholic extracts was (35 mm) against Streptococcus faecalis. The limits of minimal inhibitory concentrations (MICs) of all extracts are between (400 to 1300) μg/ml. The efficiency of antibacterial activity of T. vulgaris extracts were compared with efficiency of standard antibiotics against the same bacterial types.