Fatima El Habib
Department of Microbiology and Food Hygiene, National Institute of Hygiene,Rabat, 27 Avenue Ibn Battuta, BP. 769, Rabat, Morocco
My Mustapha Ennaji
Laboratory of Virology, Hygiene and Microbiology, Faculty of Sciences and Techniques Mohammedia, University Hassan II Mohammedia, Casablanca
Abdelmoula El Ouardi
Department of Microbiology and Food Hygiene, National Institute of Hygiene,Rabat, 27 Avenue Ibn Battuta, BP. 769, Rabat, Morocco
Samira Senouci
Department of Microbiology and Food Hygiene, National Institute of Hygiene,Rabat, 27 Avenue Ibn Battuta, BP. 769, Rabat, Morocco
ABSTRACT
Listeria monocytogenes causes septicemia, infections of the central nervous system (meningitis and meningoencephalitis) and abortions. Listeriosis occurs primarily in people at risk, such as the elderly, pregnant women and their newborns or people with a serious weakening the body or those whose cellular immunity is impaired. L. monocytogenes is a bacterium widely distributed in the environment. Its ability to persist in the industrial environment was the cause of food contamination from raw animal or plant and was a recurring problem for the food industry, despite the use of the cold chain. L. monocytogenes is a pathogen transmitted through contaminated food. It is responsible for serious infections sometimes fatal, operating mainly as sporadic sometimes epidemic. To assess the presence of L. monocy togenes in region of Rabat and determine their effect on the microbiological quality products from different food matrices, we conducted this study for three years (2009-2011). In total, 2311 samples were collected. Examination of these samples resulted in 59 samples which were positive for L. monocytogenes in: Red meat products 3.7%, white meat products 7.1%, prepared meals 1.25%, the salads 4.19%, dairy 2.34% and pastries 1.3%. However, this pathogen was absent in other analyzed samples (fishery products, creams and ice creams). Although the level of contamination by L. monocytogenes is generally low. In addition our results suggest the intervention of antagonist microbial mechanisms which may affect the survival of this pathogen.
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How to cite this article
Fatima El Habib, My Mustapha Ennaji, Abdelmoula El Ouardi and Samira Senouci, 2014. Listeria monocytogenes in Food Matrix: Frequency and Effect of Antagonist Microbial. Pakistan Journal of Nutrition, 13: 141-145.
DOI: 10.3923/pjn.2014.141.145
URL: https://scialert.net/abstract/?doi=pjn.2014.141.145
DOI: 10.3923/pjn.2014.141.145
URL: https://scialert.net/abstract/?doi=pjn.2014.141.145
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