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环介质恒温介导技术快速检测生牛乳中产肠毒素大肠杆菌 被引量:1

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摘要 为了快速检测生牛乳中产肠毒素大肠杆菌(ETEC),试验根据不耐热肠毒素A亚基与B亚基编码基因,设计4套特异引物,并对反应时间、反应温度、引物与Bst DNA聚合酶浓度进行优化。结果表明:环介质恒温介导技术(LAMP技术)快速检测生牛乳中ETEC的最佳反应条件为引物F3与B316μmol/L,引物FIP与BIP 128μmol/L,0.45μmol/L d NTPs,2 U Bst DNA聚合酶,63℃孵育60 min,本方法的最低检测限为547 cfu/m L。试验建立的LAMP技术可快速、灵敏、准确地检测生牛乳中的ETEC。
出处 《黑龙江畜牧兽医》 CAS 北大核心 2015年第9期285-289,共5页 Heilongjiang Animal Science And veterinary Medicine
基金 成都市科技支撑计划项目(14205413)
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