对Listeria monocytogenes在非即食冷蔬菜中的定量风险评估模型
Ursula Gonzales-Barron1,2, Régis Pouillot3, Juliana De Oliveira Mota4
1Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
Foods (Basel, Switzerland)
|November 27, 2024
概括
一种定量风险评估模型评估了从冷蔬菜中产生的侵入性李斯特菌病风险. 不这些非即食产品的风险高于生蔬菜污染水平.
科学领域:
- 食品安全 食品安全
- 微生物学 微生物学
- 定量风险评估 定量风险评估
背景情况:
- 侵入性李斯特菌病仍然是一个公共卫生问题,特别是与Listeria monocytogenes等食物传播病原体有关.
- 非即食 (非RTE) 的冷蔬菜如果不适当处理或加工,则可能是病原体传播的潜在载体.
研究的目的:
- 开发和提出一个定量风险评估 (QRA) 模型,用于评估与消费非RTE冷蔬菜相关的侵入性李斯特菌病风险.
- 评估各种控制措施,包括加工干预和消费者处理实践,对降低这种风险的影响.
主要方法:
- 使用R函数开发了一个QRA模型,以模拟Listeria monocytogenes在加工和消费者处理过程中的度和流行率.
- 该模型包含了关于白色化有效性,加工环境卫生,最终产品测试以及解和等消费者做法的数据.
- 进行了场景分析,以确定危险路径中的关键控制点和影响因素.
主要成果:
- 该模型估计,9.4%的冷蔬菜包装可能受到污染,在参考情景中,平均水平低于10 CFU/g.
- 据估计,在未煮熟的份量中,李斯特菌病的平均风险为2.935 × 10−14,而在煮熟的份量中为2.765 × 10−17.
- 未的非RTE冷蔬菜被确定为比生蔬菜或加工环境污染水平更大的风险贡献者.
结论:
- 开发的QRA模型为评估和管理来自非RTE冷蔬菜的菌病风险提供了有价值的工具.
- 调查结果强调了消费者做法在减轻食品安全风险方面的至关重要.
- 该模型可以为实施加强的风险管理措施提供信息,以应对不断变化的饮食趋势和消费者行为.
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