在冷却条件下的家禽加工中,甲酸的有效性和衰变动力学
Vyshnavi Ciluveru1, Jason Simon2, Jeffery M Farber3
1Department of Chemical and Biomedical Engineering, Cleveland State University, Cleveland, OH, USA.
International journal of food microbiology
|December 13, 2025
概括
数学建模量化了家禽冷期间的病原体减少. 乙酸 (PAA) 的有效性取决于度,有机负载和暴露时间,以有效控制家禽加工中的病原体.
科学领域:
- 食品安全 食品安全
- 微生物学 微生物学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 禽类产品上的病原体对公众健康构成重大风险.
- 冷却是减少病原体的关键控制点,但消毒剂的有效性没有得到很好的量化.
- 现有的研究往往缺乏对病原体动态的定量分析,包括消毒剂水平和暴露时间.
研究的目的:
- 用实验性数学建模来量化家禽冷却期间的病原体动态.
- 为了确定有机载荷,消毒剂度和暴露时间对病原体无活化的影响.
- 开发用于消毒剂腐烂和禽类加工中的病原体控制的预测模型.
主要方法:
- 在现实的条件下,在10升冷却中使用整个尸.
- 监控的工艺水参数和酸 (PAA) 水位长达60分钟.
- 评估了Salmonella enterica血清体的脱落和存活率,在不同的PAA度 (0-75 mg/L) 和暴露时间 (长达10分钟),有机负载和没有有机负载的情况下.
主要成果:
- 总溶解固体 (TDS) 比化学氧气需求 (COD) 更准确地预测了PAA衰变.
- 低残留PAA (1 mg/L) 在足够的时间内使细菌失活,但需要>5 mg/L才能快速失活.
- 需要高的有机负载初始PAA>40 mg/L和>2分钟的暴露显著的细菌减少.
结论:
- 开发了一种数学模型,用于PAA衰变和病原体在家禽冷却期间的动态.
- PAA的有效性受到有机负载,度和暴露时间的显著影响.
- 为改善家禽加工厂的病原体控制策略提供工具.
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