Feasibility Analysis of the Application of Test Slice Method in the Detection of Total Number of Food Colonies
In order to evaluate the application feasibility of the test slice method in the detection of the total number of food colonies and the consistency with the traditional plate counting method,Escherichia coli,Bacillus subtilis and Bacillus cereus are selected as the standard strains,and natural contaminated samples such as raw meat,aquatic products,dairy products,pasta and fruits and vegetables are collected.The total number of colonies are detected by the test slice method and the plate counting method,and t-test is used to analyze the consistency of the two methods.The results show that there is no significant difference between the two methods in the detection of standard strains(P＞0.05),and there is no significant difference in the detection of natural contaminated samples(P＞0.05),in which the total number of fresh noodle colonies is the highest,and the total number of beef colonies is the least.This shows that the test results of the test slice method and the plate counting method are in good agreement.The test slice method is easy to operate and provides a feasible technical means for the rapid detection of the total number of food colonies,and has a certain application prospect.
test slice methodplate counting methodfoodtotal colony
NETL
NSTL
万方数据
