Incidence of Listeria monocytogenes and Escherichia coli O157:H7 in two Kasar Cheese processing environments |
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| Authors: | Arzu Cagri-Mehmetoglu Guliz Yaldirak Tulay Bodur Merve Simsek Hamza Bozkir N. Mine Eren |
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| Affiliation: | 1. Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China;2. College of Veterinary Medicine, South China Agricultural University, Guangzhou, China;3. Department of Food Science and Nutrition, University of Maryland, College Park, MD, USA;4. Shanghai Municipal Ke-Ma-Jia Technology Center for Microbiology, Shanghai, China;5. The Putuo District Center for Disease Control and Prevention, Shanghai, China;6. Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China;1. Department of Food Science, University of Guelph, 50 Stone Rd East, Guelph, Ontario, Canada N1G 2W1;2. Department of Marketing & Consumer Studies, College of Management and Economics, University of Guelph, Guelph, Ontario, Canada N1G 2W1;1. Brigham & Women’s Hospital, Division of Infectious Diseases, Boston, MA, USA;2. International Society for Infectious Diseases, Boston, MA, USA;3. Tufts University, Boston, MA, USA;4. University of Massachusetts, Division of Infectious Diseases, Worcester, MA, USA;1. Munzur University, Faculty of Engineering, Food Engineering Department, Tunceli, Turkey;2. Ege University, Faculty of Engineering, Food Engineering Department, ?zmir, Turkey |
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| Abstract: | This study was designed to determine the presences of two environmental pathogens in two dairy factories in Sakarya, Turkey. A total of 264 environmental samples, raw milk and cheese samples were taken at four different seasons. According to the results, Listeria monocytogenes or Escherichia coli O157:H7 was isolated from 26 or 2.7% of the samples collected from both factories, respectively. None of the cheese or curd samples were found to be positive for Listeria or E. coli O157:H7. However, 50% of raw milk samples contained Listeria innocua. Listeria was mostly isolated from the swap samples taken from the drains or the floors in processing or packaging areas. However, E. coli was also isolated from the swap samples taken from the workers’ hands and gloves as well as the drains and the floor. Only one raw milk sample contained E. coli O157:H7. A higher prevalence of both pathogens was observed in the summer months than in the other months. |
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