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改善的卫生标准操作程序对三个树果包装设施中的微生物种群的影响

M Laura Rolon¹, Marysabel Mendez Acevedo², Priscilla Sinclair²

¹Department of Food Science, The Pennsylvania State University, University Park, PA 16802, USA; One Health Microbiome Center, The Pennsylvania State University, University Park, PA 16802, USA.

Journal of food protection

|December 19, 2024

概括

有效的清洁和卫生标准操作程序 (SSOPs) 减少水果包装设施中的微生物负载. 一个SSOP中的生物膜去除剂显著降低了Listeria spp. 计数,改善整体卫生成果.

科学领域:

食品安全食品安全
微生物学微生物学
环境科学环境科学

背景情况:

在食品加工中,Listeria monocytogenes 构成重大风险.
有效的清洁和卫生设施对于控制病原体污染至关重要.
了解环境卫生对微生物群落的影响至关重要.

研究的目的:

评估四种清洁和卫生标准操作程序 (SSOPs) 对微生物减少的有效性.
评估SSOP对Listeria monocytogenes的发生和微生物群组成的影响.
为了确定有助于L. monocytogenes持久性的功能性微生物元素.

主要方法:

在两个季节的时间里,在三个树果包装设施进行了环境采样.
总有氧细菌和Listeria spp./L.的量化单细胞原体.单细胞原体.
适用于微生物群和功能元素分析的安普利康和纳米孔测序.

主要成果:

SSOPs显著降低了总细菌负载 (0.272.48 log10 CFU/swab).
使用生物膜去除剂 (T4) 的SSOP最有效地减少了Listeria spp. (1.571.27 log10 MPN/swab) 的情况.
微生物群组成的变化不一致;检测到与生物膜和抗压力相关的功能元素.

结论:

实施SSOP提高了树果包装设施的卫生条件.
生物膜的去除是减少李斯特菌污染的关键因素.
需要进一步优化SSOPs,特别是对于具有挑战性的残留物,如.

关键词:

清洁和消毒清洁和消毒环境中的微生物群.李斯特里亚单细胞原生菌 (Listeria monocytogenes) 是一种卫生标准操作程序卫生标准操作程序树果包装包装树果包装

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