[日本零售肉产品中的沙门氏菌的定量分析和特征]
Shunsuke Ikeuchi1, Yoshimasa Sasaki2, Minato Okumura1
1Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology.
Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan
|December 18, 2024
概括
在日本零售的肉经常含有沙门氏菌,这是一个严重的公共卫生问题. 大多数隔离物是抗生素耐药的,这突显了需要采取食品安全措施的必要性.
科学领域:
- 食品微生物学 食品微生物学
- 公共卫生 公共卫生
- 动物传播疾病 动物传播疾病
背景情况:
- 食品中的沙门氏菌污染对公众健康构成重大风险.
- 了解零售肉中的沙门氏菌的流行和特征对于食品安全至关重要.
研究的目的:
- 为了确定在日本零售肉中的沙门氏菌的流行率和水平.
- 描述孤立的沙门氏菌株的血清型和抗菌素耐药性.
- 评估肉中的沙门氏菌污染对公共卫生的影响.
主要方法:
- 从东京和神奈川的39家商店收集了95个零售肉样本.
- 使用三管最可能数 (MPN) 方法对阳性样本进行定量分析.
- 血清定型和多位序列定型 (MLST) 用于菌株特征.
- 单独的沙门氏菌菌株的抗菌耐药性概况.
主要成果:
- 在31.6%的肉样本中检测到沙门氏菌.
- 污染水平在<0.3至4.3MPN/g之间,其中63.3%低于0.3MPN/g.
- 主要的血清类型是S. Schwarzengrund (60.6%) 和S. Infantis (24.2%). 这两种血清类型是最常见的.
- MLST发现ST 241是S. Schwarzengrund的常见病例.
- 87.9%的分离物是抗生素耐药的,其中78.8%呈现多药耐药性.
结论:
- 在日本零售的肉是沙门氏菌的重要储库,构成人类感染的风险.
- 沙门氏菌污染可能源于肉本身.
- 抗生素耐药沙门氏菌株的高流行率需要严格的食品安全干预措施.
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