Читать книгу Analytical Food Microbiology - Ahmed E. Yousef - Страница 27

It is a challenge to be able to assess the microbiological quality and safety of food accurately. The approach often used is a stepwise procedure that includes sampling, sample preparation, laboratory analysis, data collection, and result interpretation. Errors in each of these steps cumulatively determine the reliability of the overall procedure. Sampling can be an elaborate exercise (Figure 2.1), and analysts consider it the most error‐prone step. Poorly planned and executed sampling operations compromise the analyst’s ability to assess the quality or safety of food. This chapter includes two main sections: “Theoretical aspects,” which provides the knowledge needed for proper sampling, and “Practicing sampling and sample preparation,” which is a simplified practical exercise.