Microbial Determinations

Microbial Determinations - Microbial Determinations

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Microbial Determinations To assess the presence and extent of microbial contamination in food, it is standard practice to  perform several types of  microbial determinations.  These determinations are important because  microorganisms from foods can cause such diseases as staphylococcal food poisoning,  salmonellosis, typhoid fever, cholera, and gastroenteritis.  The standard plate count.  One method for determining the number of bacteria in foods is the  standard plate count.  The procedure is performed by taking a gram of food sample and diluting it in  99-ml bottles of sterile water or buffer in the method described in the chapter on aquatic  microbiology. The number of bacterial colonies is multiplied by the dilution factor to determine the  number of bacteria per gram of food.  Coliform and fungal determinations.  In food, it is valuable to assess the number of 
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This note was uploaded on 11/14/2011 for the course BIO 1421 taught by Professor Farr during the Fall '08 term at Texas State.

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