玉米衍生乳酸细菌具有益生菌特征和抗真菌活性:候选功能启动培养和生物防腐剂
Adeola O Aasa1, Samkelo Malgas1, Mapitsi Silvester Thantsha1
1Department of Biochemistry, Genetics and Microbiology, Faculty of Natural and Agricultural Sciences, University of Pretoria, Hatfield 0028, South Africa.
Foods (Basel, Switzerland)
|January 28, 2026
概括
玉米中的乳酸细菌 (LAB) 显示出作为天然食品防腐剂的希望. 这些益生菌 LAB 抑制真菌生长和食源性病原体,而 Enterococcus durans 在食品安全应用中表现出异常的抗真菌和益生菌潜力.
科学领域:
- 食品微生物学 食品微生物学
- 应用微生物学应用微生物学
- 食品安全 食品安全
背景情况:
- 玉米的真菌污染构成了全球食品安全风险.
- 益生菌乳酸细菌 (LAB) 提供了一种天然的食物保存策略.
- LAB代谢物可以减少真菌生长和其他食品污染物.
研究的目的:
- 从玉米粒中分离和描述LAB.
- 为了选LAB的益生菌特性和抗真菌活性.
- 为了比较玉米衍生的LAB对食源性病原体和真菌的疗效.
主要方法:
- 使用16S rRNA基因测序来隔离和识别LAB.
- 评估益生菌特征:耐酸性,耐胆盐性和耐性;表面疏水性.
- 对抗细菌食物传播病原体和毒性真菌的对抗性活性的评估.
主要成果:
- 确定了23个LAB分离物,包括Weissella viridenscens,Pediococcus pentosaceus,Enterococcus durans,Leuconostoc citreum和Enterococcus faecium. 这些分离物.
- 所有的分离物都对酸,胆盐和具有耐受性,具有良好的表面疏水性.
- 肠球菌 (Enterococcus sp.) 是一种菌. 显示出对大肠杆菌和黄金葡萄球菌的强烈抑制;Pediococcus sp. 针对Listeria monocytogenes. 这是一个非常好的药物.
- Enterococcus durans和Pediococcus pentosaceus分别对Alternaria tenuissima和Fusarium oxysporum表现出显著的抗真菌活性.
结论:
- 玉米衍生的LAB具有显著的益生菌和抗真菌特性.
- 杜兰氏菌 (Enterococcus durans) 显示出作为生物防腐剂和生物控制剂的巨大潜力.
- 这些LAB菌株适用于食品工业中的益生菌,初始培养和生物防腐剂.
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