STUDY ANTIBACTERIAL ACTIVITY OF LAURUS NOBILIS LEAVES WATER EXTRACT ON SOME ISOLATES OF PATHOGENIC BACTERIA

Abstract

This study was aimed to isolation of pathogenic bacteria from different clinical cases like burns, wounds &UTI infections, then study the antimicrobial activity of Laurus nobilis leaves water extract on it. From a total of (80) samples were taken from these cases, the most isolated bacteria were related to Pseudomonas aeruginosa, Klebsiella pneumoniae, Staph aureus & Escherichia coli. Antibiotic sensitivity test was done for isolated bacteria against (9) antibiotic and most of them revealed sensitivity to gentamycin, ciprofloxacin& trimethoprim/ sulphamethoxazole. Different concentration of Laurus nobilis leaves water extract (25, 50, 100, 200) mg/ml were tested for detection its antibacterial activity against isolated bacteria .Results revealed that concentration (50, 100, 200) mg/ml revealed high antibacterial activity against Staph aureus & Klebsiella pneumoniae, also showed intermediate level against Escherichia coli, while higher concentration only (100, 200) mg/ml of extract revealed antibacterial activity against Pseudomonas aeruginosa

Keywords

• Laurus nobilis, antmicrobial activity, pathogenic bacteria, burns, wounds,