解读辐射胸肉中的微生物代谢网络:对逐步辐射剂量的差异性质响应机制的多omics表征
Jincheng Han1, Rong Bai1, Jing Xi1
1College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China.
Microorganisms
|February 27, 2026
概括
电子束辐射改变了肉.
科学领域:
- 食品科学与技术 食品科学与技术
- 微生物学 微生物学
- 代谢学 代谢学 代谢学
背景情况:
- 食品辐射是一种用于延长保质期并确保微生物安全的方法.
- 了解辐射对肉类微生物群和代谢学的影响对于质量评估至关重要.
研究的目的:
- 研究电子束辐射对胸部微生物群和代谢组的影响.
- 识别耐辐射的微生物属及其代谢功能.
- 为了将微生物和代谢物变化与肉质属性相关联.
主要方法:
- 的乳房样本被不同剂量 (0-10kGy) 的电子束辐射.
- 微生物群分析使用16SrRNA测序进行.
- 使用液体染色学-并联质谱法 (LC-MS/MS) 进行了代谢分析.
主要成果:
- 辐射显著改变了微生物多样性,减少了Psychrobacter和Chryseobacterium,同时增加了Stenotrophomonas和Acinetobacter.
- 代谢网络被破坏,核心微生物群落与氨基酸,碳水化合物,酒精和脂质代谢有关.
- 低照射剂量 (≤4kGy) 对微生物和代谢物概况的影响比高剂量更大.
- 代谢物,而不是微生物多样性,与肉的颜色和质感有显著的关联.
结论:
- 电子束辐射对肉的微生物和代谢环境产生了深刻的影响.
- 特定的细菌属耐受辐射,保持与生长相关的通路.
- 代谢物概况是肉质辐射后质量变化的关键指标.
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