对致病菌的抑制能力是评价益生菌功能特性的重要指标。该文使用单层平板扩散法和细胞黏附法测试了植物乳杆菌AUH2103的抑菌能力。结果显示,将碳源替换为低聚半乳糖(galactooligosaccharides,GOS)与低聚果糖(fructooligosaccharides,FOS)后,植物乳杆菌AUH2103的抑菌能力与在MRS中的结果无显著差异;而将碳源替换为2′-岩藻糖基乳糖(2′-focusllactose, 2′-FL)后,由于生长能力变弱导致抑菌效果不明显。在低聚糖存在的情况下,植物乳杆菌AUH2103对于Caco-2细胞的黏附能力变强;在植物乳杆菌AUH2103与低聚糖存在的情况下,致病菌与Caco-2细胞的黏附能力出现明显下降。该研究表明,在低聚糖存在的情况下,植物乳杆菌AUH2103可以通过抑制致病菌对于Caco-2细胞的黏附产生抑菌效果。
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