BIOL 3052 Study Guide - Midterm Guide: Acridine, Fluorescence, Aureus
16 Feb 2017
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Document Summary
Detection of microbes and/or their products in food. Directly or indirectly enumerate or estimate the number of a specific group of microbes among the total microbial population normally present in a food sample. Determine whether a specific microbial species is present among the total microbial population in a sample of the food or in a certain number of samples in a batch of food. Used for moderate health hazard to severe health hazard) Often used for hygiene indicator organisms (no direct health hazard to moderate health hazard potential) If counts are m for all n samples = acceptable. If counts are >m for any n samples = rejected. >m are marginally unacceptable or unacceptable n= # of samples in the lot c= maximum allowed # of samples that may be. Rejected if # is exceeded m= maximum # of acceptable relevant bacteria/g. M= the quantity used to separate marginally acceptable from unacceptable. Avoid contamination of food samples with external microbes.
