ABSTRACT
The classical procedures for enumeration or detection of microorganisms in foods (Chapter 54) are labor-intensive and time-consuming. Several days are needed to obtain confirmed results. To shorten analysis time, new methods have been developed that can rapidly enumerate or detect
low numbers of microorganisms in foods. In this chapter, the term ‘rapid’ will be used to describe methods which are able to give results within a 24-48 h timeframe, whereas results within 0.5-4 h are considered extremely rapid. In order to allow for immediate corrective action during food manufacturing processes, ‘real-time’ or ‘on-line’ detection of microorganisms in foods is sought by manufacturers.
