沿供应链的韩国牛肉和周围环境的微生物动态基于高通量测序
Jeongyeon Yeom1, Dongryeoul Bae2, Sun Ae Kim1
1Department of Food Science and Biotechnology, Ewha Womans University, Seoul, South Korea.
Meat science
|May 4, 2024
概括
这项研究追踪了牛肉生产中的微生物污染. 发现了Pseudomonas和Acinetobacter等关键细菌,屠宰场被确定为一个关键的污染点,需要改善卫生.
科学领域:
- 食品微生物学 食品微生物学
- 微生物生态学 微生物生态学
- 食品安全和食品质量
背景情况:
- 牛肉是腐烂细菌和食源性病原体的潜在储存库.
- 牛肉中的微生物污染源于供应链中的各个点.
- 有效控制微生物污染对食品安全和质量至关重要.
研究的目的:
- 研究牛,牛肉和环境样本的微生物生态.
- 在整个牛肉供应链中识别微生物组转移和潜在的交叉污染物.
- 确定牛肉生产中微生物传播的主要来源.
主要方法:
- 利用16S rRNA基因测序用于微生物群落的痕迹调查.
- 分析了69个来自牛,牛肉和相关环境来源的样本.
- 使用源追踪来识别牛肉微生物组的微生物贡献者.
主要成果:
- Pseudomonas, Psychrobacter 和 Acinetobacter 在牛/牛肉中占主导地位,而葡萄球菌在最终产品中增加.
- 刺杆菌和伪菌在尸体和屠宰场环境中普遍存在.
- 农场的地板,工人的手套和尸体分割器被确定为重要的污染源.
结论:
- 屠宰场是预防牛肉微生物污染的关键控制点.
- 牛肉中的微生物群落是动态的,并受到供应链阶段的影响.
- 了解微生物传播动态有助于控制牛肉生产中的污染.
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