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Birgitte Moen¹, Annette Fagerlund¹, Sophie Marie Pursti¹

¹Nofima - Norwegian Institute of Food, Fisheries and Aquaculture Research, Ås, Norway.

|March 10, 2026

概括

监测的空气冷却器是减少微生物破坏的关键. 冷却器微生物群的时间变化与产品污染相关,突出显示冷却器是质量的关键控制点.

科学领域:

食品微生物学食品微生物学
肉加工肉加工肉加工
微生物生态学微生物生态学

背景情况:

肉产品面临微生物破坏,影响质量和增加浪费.
在家禽加工中,空气冷却器是一个关键的步骤,也是潜在的污染源.
早期检测微生物偏差对于质量改善至关重要.

研究的目的:

描述空气冷却器表面和制品中的微生物变异.
调查冷却器微生物群与产品微生物状态之间的关系.
识别空气冷却器作为一个关键控制点,以减轻损坏.

主要方法:

部分16S rRNA amplicon测序被用来确定微生物群体的组成.
在11周的时间里,采集了空气冷却器表面,新鲜和过期的肉产品的样本.
产品被存储在改造大气层 (MAP) 包装下,其中一个子集经历了温度滥用.

主要成果:

与周一相比,在周四晚班的空气冷却器和新鲜产品上观察到更高的细菌负载.
在采样时间内,空气冷却器和产品之间的微生物负载和社区组成共变.
特定的细菌属如Carnobacterium,Yersiniaceae,Lactobacillus,Acinetobacter,Psychrobacter和Pseudomonas主导着不同的样品类型.

结论:

空气冷却器的环境显著影响或反映了产品的微生物状态.
建议对空气冷却器进行有针对性的监测和干预,以减轻损坏风险.
建议的措施包括周中清洁,凝结管理和与MAP相匹配的环境采样.

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