ISOLATION AND IDENTIFICATION OF MULTIDRUG -RESISTANT POTENTIAL PATHOGENS FROM RAW MILK AND SOME DAIRY PRODUCTS | ||||
| Journal of the Egyptian Veterinary Medical Association | ||||
| Volume 82, Issue 2.3, September 2022, Page 175-188 PDF (344.33 K) | ||||
| Document Type: Original Research Articles | ||||
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| Abstract | ||||
| Milk and milk products are vital food sources for humans. However, they could be a source of public health hazards if un-hygienically produced and handled. Among the most deleterious hazards that milk and milk products can transmit to the consumer are bacterial agents. Therefore, this study aimed to investigate the incidence of Escherichia coli, Staphylococcus aureus, and Bacillus Cereus in raw cow’s milk; Kariesh cheese and rice with milk (A dessert). A total of 112 samples (70 Raw Milk, 30 Kariesh Cheese and 12 Desserts) were examined. The incidence of E. coli was 82.85 %, 53.33 %, and 33.33 % in raw milk, Kariesh cheese, and rice with milk samples respectively. While the incidence of S. aureus was 17.14 %, 6.66%, and 0% in the same samples respectively. On the other hand, B. cereus incidence was 11.42 %, 6.66 and 66.66 % for same samples, respectively. Isolated potential pathogens (60 isolates of E. coli, 10 isolates of S. aureus, and 30 isolates of B.cereus were subjected to antimicrobial susceptibility testing. The antibiogram of the isolates indicated that E. coli isolates were resistant to gentamycin (73.33%), followed by ampicillin (53.3%) and (16.66%) for cefotaxime. while all isolates were sensitive to tetracycline, ciprofloxacin, and trimethoprim - sulphamethoxazole by 100%. For S. aureus, all isolates were resistant to ampicillin (100%), followed by 60% resistance to each of tetracycline, cefotaxime, and gentamycin, while all isolates were sensitive by 100% for ciprofloxacin, amoxicillin-clavulanic acid, and trimethoprimsulphamethoxazole. Regarding B.cereus all isolates showed resistance to ampicillin (100%), followed by amoxicillin (20%) and tetracycline (6.66%), while all isolates were sensitive 100% to vancomycin. multidrug resistance was conversed by 3 S. aureus isolates, 1 E. coli isolate and 1 B. cereus isolate. Conclusively, Our Findings denote the incidence of health hazards in raw milk and products produced from it such as Kariesh cheese; and the high incidence of antibiotic-resistant bacteria that can cause human illness and be difficult to be treated | ||||
| Keywords | ||||
| E. coli; S. aureus; B. cereus; Raw milk; Kariesh cheese; Rice with milk; Dessert; Multidrug resistance | ||||
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