冷链中断对冷藏肉微生物特征的影响
Lenka Necidová1, Alena Zouharová1, Danka Haruštiaková2
1Department of Animal Origin Food & Gastronomic Sciences, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, 61242 Brno, Czech Republic.
Poultry science
|October 5, 2024
概括
不适当的运输条件显著影响冷藏肉的质量. 在温度波动期间,修改大气包装 (MAP) 与普通包装相比,更好地保护微生物生长.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 食品安全 食品安全
背景情况:
- 运输条件可能会损害冷食品的微生物质量.
- 保持冷链完整性对于防止微生物腐烂和确保食品安全至关重要.
- 包装类型会影响温度外游期间的微生物动态.
研究的目的:
- 为了评估模拟不适当的运输条件对冷藏肉微生物质量的影响.
- 为了比较普通包装与在高温下修改大气层包装 (MAP) 的性能.
- 根据运输条件和包装,为肉确定可接受的微生物界限.
主要方法:
- 在模拟运输过程中,模拟温度在不同时间段 (1-4小时) 上升 (8-25°C).
- 微生物学分析包括有氧板数 (APC),心理养微生物数 (PMC),大肠杆菌和沙门氏菌spp.
- 暴露后立即对样品进行评估,并在返回冷藏 (≤4°C) 后3小时和24小时后对样品进行评估.
主要成果:
- 与MAP样本相比,普通包装的冷肉显示出APC和PMC极限的超越率更高.
- 无论运输条件如何,腿比胸有更高的大肠杆菌患病率.
- 没有沙门氏菌 spp. 在任何样本中检测到,并且大肠杆菌的存在与温度或时间变量无关.
结论:
- 改性大气层包装 (MAP) 为冷的肉提供了在运输温度偏差期间对微生物增殖的优越保护.
- 该研究提供了数据,以支持开发软件,以评估运输条件对微生物测试结果的影响.
- 调查结果将有助于捷克监管机构在运输后评估样品完整性.
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