商业鱼产品中的微生物联盟:使用培养依赖和高通量测序方法进行比较研究
Eunjin Choi1, Yeo Min Kim1, Young Hoon Lee2
1Department of Food Science and Biotechnology, Ewha Womans University, Seoul, South Korea.
Food research international (Ottawa, Ont.)
|November 30, 2024
概括
这项研究揭示了新鲜和烟鱼之间显著的微生物差异. 虽然两者都含有像Photobacterium和Pseudomonas这样的腐烂细菌,但烟鱼具有更有益的乳酸细菌,影响食品安全和质量.
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
- 食品安全分析 食品安全分析
背景情况:
- 鱼产品的广泛消费需要进行全面的微生物学评估.
- 之前的研究还没有完全描述零售新鲜和烟鱼的微生物特征.
研究的目的:
- 对消费者可用的新鲜和烟鱼产品进行全面的微生物调查.
- 用培养和测序方法比较微生物群落.
- 确定关键的微生物差异及其对鱼产品质量和安全的影响.
主要方法:
- 在四个季节收集了120个新鲜和95个烟的鱼样本.
- 使用常规培养技术进行微生物学分析 (有氧板计数,大肠杆菌计数).
- 16S rRNA amplicon测序用于详细的微生物社区概况.
主要成果:
- 与鱼相比,新鲜鱼的有氧板数量和大肠杆菌数量更高.
- 16S rRNA测序揭示了不同的微生物组成,其中光细菌和伪菌在两种产品类型中占主导地位.
- 吸烟的鱼显示乳酸细菌 (Leuconostoc,Lactobacillus,Lactococcus) 的丰度明显更高.
结论:
- 新鲜和烟鱼的微生物概况有很大的不同,特别是烟产品中乳酸细菌的丰富性.
- 在这两种药物中,与腐烂相关的细菌都很普遍,这凸显了对质量控制的需要.
- 调查结果为改善鱼生产和销售策略提供了洞察力,以确保消费者的安全.
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