Microbiological load of raw materials (products) at downtimes in storage tanks and equipments

Lucie Kasalová Microbiological load of raw materials at downtimes in storage tanks and equipments Bachelor thesis Charles University, Faculty of Pharmacy in Hradec Králové Health bioanalytics Background: The aim of bachelor thesis is to find out whether the raw materials, used for food production, can be used for the recommended storage period but also after this period and to what extent they are affected by the increase of microbes. Further characterize the classical cultivation methods used in food microbiology and the process for the determination of microorganisms in food. In the experimental part, which deals with the testing of raw materials (fruit concentrates) stored in storage tanks, we try to find out to what extent they are subject to microbiological stress. For the comparison of the results of the experimental part, two sampling points will be selected - the first on the panel for the tank, the second on the mixing tank, where the raw material goes into the production part. Methods: The theoretical part is focused on description of cultivation methods used in microbiological laboratories for determination of individual microorganisms, especially determination of total number of microorganisms, determination of number of molds and yeasts etc. In the practical part, the differences in..