来自不同生产系统的生牛奶中微生物多样性和脂肪酸的比较分析
Eiseul Kim1, Tae Cheol Song1, Seung-Min Yang1
1Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea.
Food chemistry
|August 15, 2025
概括
有机牛奶受到牧场进入的影响,显示出明显的微生物群落和更高的必需多不和脂肪酸 (PUFA). 生产实践对生牛奶质量及其微生物动态有重大影响.
科学领域:
- 乳制品科学 乳制品科学
- 微生物学 微生物学
- 营养科学 营养科学
背景情况:
- 牛奶生产实践 (传统,无抗生素,有机) 可能会影响原牛奶的成分.
- 微生物群落和脂肪酸概况是牛奶质量的关键指标.
研究的目的:
- 调查不同牛奶生产实践对生牛奶微生物结构和脂肪酸概况的影响.
- 了解这些变化如何影响整体牛奶质量.
主要方法:
- 对传统,无抗生素和有机牛奶的微生物多样性和社区结构进行比较分析.
- 脂肪酸分析以确定脂质组成.
- 相关性和网络分析将微生物属与脂肪酸联系起来.
主要成果:
- 在生产类型之间没有观察到总体微生物多样性的显著差异.
- 有机牛奶表现出较高的乳球菌,青菌和肉菌的相对丰度, Pseudomonas 在所有类型中占主导地位.
- 有机牛奶的必需多不和脂肪酸 (PUFA) 含量显著更高,与牧场接入有关.
- 在有机牛奶中发现了PUFA和微生物属之间的特定关联.
结论:
- 牛奶生产实践,特别是有机农业与牧场接入,显著影响原牛奶的微生物组成和脂肪酸概况.
- 微生物动力学和脂肪酸含量的这些变化表明直接影响牛奶质量.
- 这些发现强调了农业方法,微生物生态学和生牛奶的营养价值之间的相互联系.
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