电导率法快速检测牛奶中单增李斯特菌初探.doc

摘要：本实验建立一种可以快速检测牛奶中单增李斯特菌总数的电导率法，并将其与传统的国标法进行比较，验证其可行性。实验先建立了利用电导率法测定牛奶中的单增李斯特菌总数的标准曲线，然后通过平行实验验证电导率法快速测试牛奶中单增李斯特菌总数的重现性，再通过对比实验比较了电导率法与国标法测定结果的符合率。经过统计学t检验，结果P>0.05,表明两种方法无显著性差异。说明电导率法作为一种快速检验牛奶中单增李斯特菌的总数的方法是可以行的。 

关键词  电导率法;牛奶;单增李斯特菌;快速检测

Abstract:This experiment established a single can quickly detect the milk increases the total number of listeria conductivity method, and compared with the traditional national standard method, and verify its feasibility.Experiment first established using the method of electric conductivity determination of the standard curve of the single increases the total number of listeria in milk, then through parallel experiments conductivity method to quickly test the reproducibility single increases the total number of listeria in milk, then through the contrast experiment compared the conductivity method and national standard method, the accuracy of determination results.Results through statistical t test, P > 0.05, shows that two methods have no significant difference.That electrical conductivity method as a kind of rapid testing method of single increase of listeria monocytogenes in milk can be done.

Keywords  Conductivity method  Milk  Listeria monocytogenes  Rapid detection