婴儿配方奶中含有微生物污染物,这些微生物污染物未能通过推的制备方法去除
Siân Cairns1, Deirdre Gilpin2, Simon J S Cameron1
1School of Biological Sciences, Institute for Global Food Security, Queen's University Belfast, Belfast, BT9 5DL, United Kingdom.
Journal of applied microbiology
|October 27, 2025
概括
对婴儿配方奶粉 (PIF) 的微生物分析显示,制备方法,包括家庭制备机器 (APHM),可能无法消除所有污染物. 一些细菌,如Bacillus cereus,可以在高温下生存,对婴儿健康构成潜在风险.
科学领域:
- 微生物学 微生物学
- 婴儿营养 婴儿营养
- 食品安全 食品安全
背景情况:
- 对婴儿配方奶粉 (PIF) 的强制性微生物学测试可能无法完全捕捉微生物环境.
- 了解持久性微生物对于婴儿健康和微生物群发育至关重要.
研究的目的:
- 用标准和家庭制备机器 (APHM) 方法确定PIF制备后持续存在的微生物负载和分类.
- 评估推的制备温度对微生物污染物的有效性.
主要方法:
- 来自英国商业供应商的PIF样品使用无菌70°C水,无菌室温水或APHM进行准备.
- 微生物分析包括对Tryptic大豆和Sabourhaud乳糖进行涂层,总有氧计数,以及MALDI-ToF质谱测量以识别分离物.
主要成果:
- 微生物种群根据制备方法有显著差异,APHM制备的配方显示出独特的微生物恢复.
- 根据制备方法,四种PIF表现出显著的微生物差异.
- 分离了潜在的病原体,包括抗生素耐药的Bacillus cereus,其中B. cereus表现出超过70°C的耐热性.
结论:
- 目前的PIF制备指南可能无法消除所有微生物污染物,包括机会性病原体.
- 鉴定的病原体似乎是环境污染物,代表了对婴儿微生物组发育的低估关注.
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