埃及进口冷藏和冷冻牛肉中某些食源性病原体(FBPs)的流行情况

Aya Mohamed Ahmed, F. Mohamed, Gehan Sayed eltanany, Shimaa N. Edris
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摘要

关键词 由于食源性致病菌污染,食品安全是全球优先考虑的问题。本研究测定了埃及进口冷藏和冷冻牛肉中需氧中嗜性细菌计数(AMB)、金黄色葡萄球菌、沙门氏菌属、大肠杆菌和李斯特菌的流行率。实验结果表明,冷藏样品中的 AMB(cfu/g)从 5.3×10 4 到 4.7×10 6 不等,平均值为 8.35×10 5 ±1.06。相比之下,冷冻样本中的菌落总数从 9.7×10 3 到 1.5×10 6 不等,平均为 3.11×10 5 ±0.29。在 24% 的冷藏牛肉样本和 16% 的进口冷冻牛肉样本中发现了金黄色葡萄球菌。在 5%的冰鲜牛肉样本和 3%的进口冷冻牛肉样本中发现了沙门氏菌。此外,在 14% 的冰鲜牛肉样本和 8% 的冷冻牛肉样本中发现了大肠埃希氏菌。在 3% 的冷藏牛肉样本和 1% 的冷冻牛肉样本中发现了单核细胞增生酵母菌。这些结果证实了开罗和卡留比亚市场上销售的某些进口冷藏和冷冻肉类的细菌学质量不合格。造成这种质量缺陷的原因是不清洁的运输方式一直延续到零售环节。根据冰鲜牛肉的综合调查结果,可以推断进口冰鲜牛肉和冷冻牛肉对公众健康构成了严重的细菌风险,需要采取具体的控制措施。
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Prevalence of some Foodborne Pathogens (FBPs) in imported chilled and frozen beef in Egypt
Keywords Food safety is a global priority due to foodborne pathogens contamination. This study determined the prevalence of Aerobic mesophilic bacteria count (AMB), Staphylococcus aureus, Salmonella spp., E. coli and Listeria monocytogenes in imported chilled and frozen beef in Egypt. The experimental results revealed that the AMB (cfu/g) in chilled samples varied from 5.3×10 4 to 4.7×10 6 , with an average of 8.35×10 5 ±1.06. In contrast, for frozen samples, the range was from 9.7×10 3 to 1.5×10 6 , with an average of 3.11×10 5 ±0.29. Staphylococcus aureus was found in 24 % of chilled beef samples and 16 % of imported frozen beef samples. The prevalence of Salmonella spp. was identified in 5% of chilled beef samples and 3% of imported frozen beef samples . Additionally, Escherichia coli was identified in and 14% of chilled samples and 8% of frozen samples. The presence of L. monocytogenes was identified in 3% of chilled beef samples and 1% of frozen samples. The results obtained validated the inadequate bacteriological quality of certain imported chilled and frozen meats sold in the markets of Cairo and Qalyubia. This quality deficiency is a result of unclean transportation practices that continue to the retail levels. Chilled comprehensive findings, it can be inferred that imported chilled and frozen beef poses a substantial bacteriological public health risk and requires specific control measures.
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