带有毒性和殖民特征的精神营养细菌占据了冰淋制造环境
Vincenzo Valentino1, Francesca De Filippis1,2, Giuseppina Sequino1
1Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy.
Applied and environmental microbiology
|July 11, 2023
概括
食品加工设备上的微生物生物膜可以在卫生环境下存活下来,以腐烂细菌和病原体污染产品. 微生物组测绘有助于识别污染源并改善食品安全策略.
科学领域:
- 食品微生物学 食品微生物学
- 环境微生物学 环境微生物学
- 食品安全 食品安全
背景情况:
- 食品加工设备上的微生物生物膜可能会造成产品污染的风险.
- 这些有弹性的社区可以在卫生程序之外继续存在.
- 微生物从表面转移到食品中是一个重大问题.
研究的目的:
- 为了调查冰淋生产设施中的微生物污染路径.
- 在加工环境中识别微生物种类及其功能基因.
- 评估微生物从设备表面转移到最终产品的可能性.
主要方法:
- 从冰淋生产设施收集食品和环境样本.
- 从环境抽样中获得微生物DNA的分类学和功能分析.
- 对特定的微生物洞察力进行元基因组组装基因组 (MAG) 分析.
主要成果:
- 鉴定出复杂的微生物群落,其中占主导地位的是像Pseudomonas和Acinetobacter这样的精神变质细菌.
- 与抗微生物耐药性和表面粘附性相关的基因在与食品接触的表面更为丰富.
- Pseudomonas stutzeri MAGs 揭示了生物膜形成和运动性的基因,表明了殖民潜力.
- 证明了微生物从设备表面转移到冰淋产品的证据.
结论:
- 微生物组测绘是跟踪食品设施中微生物污染源的宝贵工具.
- 了解环境微生物群落有助于制定有针对性的消毒策略.
- 这种方法通过检测潜在的危险微生物来提高食品质量和安全.
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