Effect Of Some Medical Oils Purchased From The Local Markets Of Al-Marj City On Some Pathogenic Bacteria

Abstract

Several studies have demonstrated antibacterial activity of essential oils extracted from different medicinal plants. This study was conducted to determine the antimicrobial activity of six kinds from essential oils (Basil oil, Cinnamon oil, Fenugreek oil, Garlic oil, Ginger oil , and, Parsley oil) against three pathogenic bacteria( Escherichia coli, proteus pseudomonas and Staphylococcus aureus ).The antimicrobial activity was examined using paper disc diffusion method. also four antibiotics [Aoxicicillin 25mg/ml (Amx), ciprofloxacin – 5 mg/ml (cip 5), doxycycline (Do) 30 mg/ml , and Streptomycin (5 mg/ml)] used to compared with essential oils, and may be use essential oils as an alternative for the treatment of infectious diseases. The present study showed that the E.coli was more sensitive than other studied bacteria. At high concentrations (20, and 50 µl/l), Basil and fenugreek oils exhibited marked inhibition activity against all studied bacteria, and inhibition of Basil oil was strongest than those of Fenugreek oil. Comparatively, P . pseudomonas ,and S. Aureus was less sensitive to the inhibitory activity of the Cinnamon, Garlic, Ginger, and Parsley oils than E.coli which was more inhibited at same concentrations of essential oils and Ciprofloxacin showed a good effect on the bacteria E. coli .The sensitivity of P. pseudomonas to Doxycycline and Ciprofloxacin corresponded to an average diameter of 12.24,and 12.21mm respectivily. Aoxicicillin was another antibiotic that showed its effectiveness with E. coli whose diameter was 12.31 mm. The results of this study showed that six essential oils has strongly inhibitory effect against E.coli. While weakly inhibitory effect on other studied bacteria. the comparison between the diameters of the inhibition zones of antibiotics and the dia-meters of the six essential oils shows that E. coli ,S. aureus and Proteus sp are more susceptible to essential oils than antibiotics.