Abstract
Screen Qutran oil and vapor of wild olive (Olea europaea subsp Cuspidate) extracted for their efficiency against some strains of microorganisms. Bacillus subtilis, MERSA (Methicillin-resistant Staphylococcus aureus), Micrococcus luteus, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Klebsiella pneumonia. The tested materials were estimated using disc diffusion method. The efficacy of wood tar oil against activity of tested microorganisms was greater than that induced by both vapor and streptomycin. The inhibition rate of bacteria growth reached around 16.33 to 46.00mm. Pseudomonas aeruginosa was the greatest sensitive strain, after that Micrococcus luteus, whereas Staphylococcus aureus had been induced the greatest resistant strain of bacteria with growth area of inhibition 16.33mm. GC-MS analysis revealed that the Qutran contained mainly Colchifoleine, acetic acid, D-Cycloserine, Malonamic acid, Acetaldehyde and Kaempferol. All recognized agents possess antimicrobial activity.