Incidence Of Listeria Monocytogenes In Dairy And Food Products Of Animal Origin In Central Region Of Peninsular Malaysia

Marina A.R., Ismail M., Nurilyana M.T., Mohd Fharok Y. And Azzura A.L.

Marina A.R., Ismail M., Nurilyana M.T., Mohd Fharok Y. And Azzura A.L.

Listeria monocytogenes (L. monocytogenes) is a food-borne pathogen which causes listeriosis , an illness characterised by meningitis, encephalitis and septicemia, especially in immunocompromised individuals, pregnant women, newborns, and the elderly. It has been reported that several outbreaks
of listeriosis were due to consumption of contaminated food products, such as dairy, meat, vegetable and seafood. L. monocytogenes is notable for its ability to grow at refrigeration temperatures, unlike most enteric pathogens. This has considerable significance for food safety as it means chilling to 4 ?C could not be relied upon to prevent the growth of the organism to a dangerous level. The study aims to determine the incidence of L. monocytogenes in selected food products of animal origin obtained from selective food processing plants under Veterinary Health Mark (VHM) certification scheme in central Peninsular Malaysia. A total of 130 samples were collected from January to August 2018 from 19 processing plants in four states of Malaysia. The food samples comprising of 30 dairy milk products (ice-cream, butter and cheese) and 100 meat products (chicken frankfurter, smoked chicken frankfurter, chicken sandwiches and chicken Lyoner were analysed for the presence of L. monocytogenes using selective enrichment and isolation protocol. L. Monocytogenes was not detected in any of the samples. More comparative studies are needed to detect the existence of this pathogen from a variety of food and the environment. This is to ensure the appropriate prevention and control measures are implemented that will help to prevent L. monocytogenes food contamination in the food industry.