在真空包装牛肉中的微生物继承和相互作用:细菌和真菌动态的纵向研究
Franz-Ferdinand Roch1, Monika Dzieciol2, Cameron R Strachan3
1Clinical Department for Farm Animals and Food System Science, Center for Food Science and Veterinary Public Health, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210, Vienna, Austria. franz-ferdinand.roch@vetmeduni.ac.at.
NPJ science of food
|June 18, 2025
概括
菌在真空包装牛肉腐烂中发挥着至关重要的作用,与细菌相互作用影响肉质. 了解这些微生物动态是提高肉类安全性和保质期的关键.
科学领域:
- 食品微生物学 食品微生物学
- 微生物生态学 微生物生态学
- 肉类科学 肉类科学
背景情况:
- 真空包装 (VP) 牛肉中的微生物群落影响肉质和腐败.
- 在VP牛肉中的细菌继承是可以理解的,但真菌贡献的探索较少.
研究的目的:
- 在85天的时间内调查VP牛肉中细菌和真菌群落的动态和相互作用.
- 阐明真菌和跨王国相互作用在肉类微生物群发展中的作用.
主要方法:
- 采用了入,定量PCR (qPCR),16S/18SrRNA基因扩增序列测序,基于培养的方法和全基因组测序.
- 进行共同培养实验以评估微生物相互作用.
- 分析基因组数据以推断代谢相互作用.
主要成果:
- 细菌群落在15天内从 Pseudomonas 和 Brochothrix 转移到乳酸细菌 (LAB).
- 真菌群落多样化,Kurtzmaniella,Barnettozyma,Debaryomyces和Yarrowia被确定为关键的属.
- 观察到一个三角相互作用:酵母促进LAB,LAB抑制肠杆菌,肠杆菌抑制酵母.
结论:
- 菌在VP牛肉微生物生态系统中发挥着重要的,以前被低估的作用.
- 跨王国的微生物相互作用对肉类的腐烂和质量至关重要.
- 这些发现为制定提高肉类安全性和延长保质期的策略提供了基础.
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