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投稿时间：2019-12-04
投稿时间：2019-12-04
中文摘要: 以金黄色葡萄球菌、大肠杆菌和沙门氏菌为指示菌，研究分离自内蒙古传统发酵食品中的5株乳杆菌对病原菌及其生物被膜的抑制作用。结果表明，5株乳杆菌对单一菌和混合菌生物被膜及AI-2分子相对活性均有抑制作用；ALAC-1和ALAC-5代谢产物抑菌效果较好，尤其对金黄色葡萄球菌抑制作用最好，ALAC-5抑菌率高达78.95%，ALAC-1可达69.47%；混合菌生物被膜对5株乳杆菌代谢产物的敏感性较弱，乳杆菌对其生物被膜抑制作用明显低于单一菌生物被膜。
Abstract:In the research，using Staphylococcus aureus，Escherichia and coli-Salmonella as the object，and the inhibitory effects of five Lactobacillus strains isolated from traditional fermented foods in Inner Mongolia on pathogens and their biofilms were studied.The results showed that 5 Lactobacillus strains inhibited the relative activities of single and mixed bacterial biofilms and AI-2 molecules；ALAC-1 and ALAC-5 metabolites had better antibacterial effects，especially against Staphylococcus aureus.Preferably，ALAC-5 had a bacteriostasis rate of 78.95%and ALAC-1 could reach 69.47%.The mixed biofilm was sensitive to 5 Lactobacillus metabolites，and the inhibition effect of Lactobacillus on its biofilm was significantly lower than that of single.
文章编号：202022028 中图分类号： 文献标志码：
基金项目:内蒙古自治区高等学校科学研究项目（NJZZ17053）
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