乳酸细菌的选,鉴定和发酵特征从入的草末和潜在的应用
Xiaoxue Kong1,2, Jiaxin Zhang2, Hui Shen1
1Agro-Products Processing Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650221, China.
Foods (Basel, Switzerland)
|April 26, 2025
概括
研究人员确定了乳酸细菌菌株,以改善菜草末的发酵. 两个菌株,Weissella cibaria (LAB1) 和Leuconostoc mesenteroides (LAB2),优化了质量,缩短了发酵时间,并提高了营养价值.
科学领域:
- 食品微生物学 食品微生物学
- 发酵科学 发酵科学
- 应用微生物学应用微生物学
背景情况:
- 传统的麻发酵依赖于自然的微生物群落,导致质量变化和长时间的发酵时间.
- 优化初始培养可以提高发酵蔬菜产品的效率和质量.
- 乳酸细菌 (LAB) 对于许多蔬菜的发酵至关重要,影响味道,质地和安全性.
研究的目的:
- 为了确定优质的乳酸细菌 (LAB) 起始培养,用于草末发酵.
- 为了优化传统的发酵过程,缩短发酵时间,并提高入的草末的质量.
- 评估选定的LAB菌株对微生物群落动态和营养成分的影响.
主要方法:
- 对四种LAB菌株进行查:两个Weissella cibaria (LAB1,LAB3) 和两个Leuconostoc mesenteroides (LAB2,LAB4).
- 在实验室评估LAB对低pH和盐的耐受性,乳酸的产生,化物降解,抗菌和抗氧化活性.
- 使用选定的菌株 (LAB1,LAB2) 作为起始培养的发酵试验,随后进行微生物多样性分析和评估关键发酵参数.
主要成果:
- 在实验室表现的基础上选择了LAB1 (Weissella cibaria) 和LAB2 (Leuconostoc mesenteroides).
- 与自然发酵相比,这两种初始培养都降低了酸盐含量,缩短了发酵时间,保持了降低糖分,并增加了氨基酸.
- 用LAB1注射稳定了细菌群体,并增强了氨基酸,适合作为单一启动剂. LAB2降低了亚酸盐,促进了LAB的生长,作为混合启动剂有效.
结论:
- 韦塞拉西巴利亚 (LAB1) 是一种非常适合用于草末发酵的单一起始培养物,增强了稳定性和营养价值.
- 莱可诺斯托克 (Leuconostoc mesenteroides) (LAB2) 是一种有效的混合启动剂,可降低酸盐并促进有益细菌的生长,但由于酸性产量有限,不建议作为单一启动剂.
- 使用精选的LAB初始培养物可显著改善制草末的发酵过程和质量.
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