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Position: Home > Articles > Rapid detection of Lactobacillus fermentum by PCR-DHPLC Progress in Fishery Sciences 2011,32 (3) 111-115

PCR结合变性高效液相色谱快速检测发酵乳酸杆菌

作  者:
杨大伟;周裔彬;刘云国;雷质文;陈俊芳;王建广;李正义
单  位:
安徽农业大学;山东出入境检验检疫局检验检疫技术中心
关键词:
发酵乳酸杆菌;PCR;变性高效液相色谱;检测
摘  要:
采用多聚酶链式反应结合变性高效液相色谱技术建立了发酵乳酸杆菌的快速检测方法。以编码发酵乳酸杆菌Lactobacillus fermentum延伸因子(EF-Tu)基因为靶基因设计引物,优化PCR体系,以加氏乳酸杆菌等26株试验菌株做特异性检测;并将标准菌株稀释成不同梯度,做灵敏度检测。试验结果表明,该方法有很好的特异性,且灵敏度高,检测限可达到100CFU/ml。
译  名:
Rapid detection of Lactobacillus fermentum by PCR-DHPLC
作  者:
YANG Da-wei1,2 ZHOU Yi-bin1 LIU Yun-guo2 LEI Zhi-wen2CHEN Jun-fang1 WANG Jian-guang2 LI Zheng-yi2(1Anhui Agriculture University,Hefei 230000)(2Shandong Entry-Exit Inspection and Quarantine Bureau,Qingdao 266002)
关键词:
Lactobacillus fermentum PCR DHPLC Detection
摘  要:
Rapid detection of Lactobacillus fermentum was established by using polymerase chain reaction(PCR) and denaturing high-performance liquid chromatography(DHPLC).The primers were designed and the PCR system was optimized with the elongation factor(EF-Tu) of L.fermentum as the target gene.Twenty-six strains including L.gasseri were tested with specific detection.The sensitivity of various diluted standard strains were determined.The results indicated that the PCR-DHPLC method was specific and sensitive with a detection limit of 100 CFU/ml.

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