屠宰场牛肉食的可持续实践和微生物质量
Ana Raquel Cândido1, Kamila Soares2,3, Márcio Moura-Alves2,3
1PEC Nordeste, Zona Industrial II, 4564-909 Penafiel, Portugal.
Veterinary sciences
|February 26, 2025
概括
越来越多的肉类消费需要探索可持续的替代品,如内脏. 这项研究发现,在加工过程中和较高数量的牛食中,微生物污染增加,强调需要采取更严格的卫生措施来确保食品安全.
科学领域:
- 食品科学与技术 食品科学与技术
- 微生物学 微生物学
- 公共卫生 公共卫生
背景情况:
- 全球肉类消费量的增加引发了对环境可持续性和食品安全的担忧.
- 可食用的牛食提供了富含营养,经济和可持续的肌肉替代品.
- 关于牛的微生物质量的数据有限,通常与屠宰场卫生状况不佳有关.
研究的目的:
- 在垂直屠宰场的各种加工阶段评估牛肝和舌头的表面微生物群.
- 评估屠宰量对微生物污染水平的影响.
- 确定特定细菌病原体的流行率,包括大肠杆菌O157和沙门氏菌spp.
主要方法:
- 牛肝和舌头的样本是在死后收集的,在内脏准备和冷藏后.
- 微生物学分析包括对半性有氧细菌,Enterobacteriaceae,Escherichia coli和Staphylococcus aureus的列举.
- 检测可能存在的大肠杆菌O157,金黄色葡萄球菌和沙门氏菌spp. 使用ISO方法进行.
主要成果:
- 微生物数量通常在规范范围内,但在屠宰量增加的日子里观察到更高的微生物负载.
- 微生物的含量逐渐增加,通过内脏加工阶段.
- 据推测,大肠杆菌O157污染在20.83%的样本中被发现,沙门氏菌spp. 在3.47%和S. 在25%的 aureus 中.
结论:
- 虽然一些假设的阳性需要确认,但假设的高患病率E. 大肠杆菌O157需要加强污染预防策略.
- 屠宰期间采取更严格的卫生措施至关重要,以尽量减少内脏污染,减少食物损失,并提高肉类生产的可持续性.
- 这项研究强调了监测和控制食用食中的微生物污染的重要性,以确保消费者的安全.
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