DETECTION OF ANTILISTERIAL ACTION OF AQUEOUS EXTRACTOFMORINGA OLEIFERA SEEDS

Listeria monocytogenes is one of the major human as well as animal food borne pathogens. It has been indicated that clinical strains of L. monocytogenes are resistant to a wide range of antibiotics. Use of natural products as anti bacterial compounds seems to be an important way to control the presence of pathogenic bacteria. Moringa is one of the safe and alternative source of antimicrobial agent. Antilisterial action of aqueous extracts of Moringa oleifera seeds (50, 100, 150, 200, 250 mg/ml) was tested against L. monocytogenes and L. innocua. Inhibitory effect was noticed at 200, 250 mg /ml concentrations. The minimum inhibitory concentration was found to be 200 mg/ml.