International Journal of Current Microbiology and Applied Sciences
ISSN: 2319-7706 Volume 2 Number 1 (2013) pp. 86-93

Studies on pathogenic Listeria monocytogenes from marine food resources

R.Vinothkumar, K. Arunagiri* and T. Sivakumar
Department of Microbiology, Kanchi Shri Krishna College of Arts and Science, Kilambi, Krishnapuram, Kancheepuram - 631 551, Tamil Nadu, India.


In the present investigation encompasses the incidence of Listeria monocytogenes in marine food samples, a human pathogen in the outbreak of listeriosis disease worldwide. This report is concerned with the isolation and identification of Listeria monocytogenes from marine food resources. A total of 30 samples of dry fish, fresh fish, and crustaceans were analyzed qualitatively. These samples were tested using bacteriology method to detect the presence of Listeria monocytogenes. Out of 30 samples, 20 samples showed positive results for Listeria species. Antibiotic susceptibility was carried out for the isolated Listeria monocytogenes from selected food samples. This study indicated that these food samples were cross contaminated with Listeria monocytogenes. This study had also demonstrated that colonization of refrigerator by Listeria monocytogenes in a potential source of contamination of food products.

Keywords : Marine bacteria; Isolation of Listeria monocytogenes; Marine fishes; Antibiotic resistant pattern