Читать книгу Analytical Food Microbiology - Ahmed E. Yousef - Страница 51

The procedure for determining the count of a microbial population using the plate count method often involves homogenizing a sample, preparing dilutions of the homogenized product, plating appropriate dilutions on a suitable medium, incubating the inoculated medium, counting resulting colonies, and calculating the concentration of the targeted population. For determining the concentration of microbial population accurately, it is imperative that the analytical sample is appropriately obtained and prepared. Information about sampling and sample preparation (including homogenization) has been discussed in Chapter 2.