Document Type : Original Articles
Authors
1
Food Hygiene and Control Department, Faculty of Veterinary Medicine, Mansoura University, Egypt
2
Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Mansoura University, Egypt.
3
Department of Food Hygiene, Faculty of Veterinary Medicine , Mansoura University, Mansoura 35516, Egypt
Abstract
Objectives: This study was applied to investigate the prevalence of Escherichia coli and Staphylococcus aureus in milk and dairy products in Dakahlia Governorate, Egypt.
Design: An observation study.
Samples: 100 samples of raw buffalo milk, raw cow milk, kariesh cheese, and raw cream (25 of each).
Procedures: One hundred samples of buffalo milk, cow milk, kariesh cheese, raw cream (25 of each) were randomly collected from various markets and dairy farms in Dakahlia Governorate, Egypt for the detection of Escherichia coli and Staphylococcus aureus prevalence, serological identification of E. coli, and total Staph. aureus count.
Results: The prevalence of E. coli and Staph. aureus was 84, 76, 92 and 68% & 44, 36, 60, and 48% in raw buffalo milk, raw cow milk, Kariesh cheese, and raw cream samples, respectively. Regarding the serological identification of E. coli, O55:H7 & O119:H6 (19.04%) were the most frequent revealed strains from raw buffalo milk however O169 (21.05%) in raw cow milk. But in dairies, O125:H6 was the highest (30.34%) in Kariesh cheese, while O119:H6 (23.52 in raw cream. Referring to the mean Staph. aureus count, it was 6.23×104 ± 2.11×104, 4.45×104 ± 1.39×104, 4.89×105 ± 1.13×105 and 3.24×104 ± 1.32×104 CFU/ml in the same preceded order of samples.
Conclusion and Clinical Relevance: The study declared that milk and dairies marketed in Dakahlia governorate might pose public health hazards to consumers which highlight the necessity of applying food safety programs during milk collection and manufacturing.
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