micro_of_dairy_products - Microbiology of Dairy Products -...

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Harrison – FDST 4030/6030 Microbiology of Dairy Products 1 Harrison FDST 8090 Microbiology of Dairy Products Microbiology of Dairy Products Harrison FDST 8090 Microbiology of Dairy Products - Issues ± Spoilage ± Desirable changes ± Processed and fermented items ± Highly regulated ± Disease transmission ± Infants and children - widely consumed; a high % of their diet ± Consumer typically does not heat before consumption Harrison FDST 8090 Harrison FDST 8090 Harrison FDST 8090 Harrison FDST 8090
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Harrison – FDST 4030/6030 Microbiology of Dairy Products 2 Harrison FDST 8090 Dairy Foods - Issues ± Disease transmission ± Today’s outbreaks ± Raw milk ± Home made ice cream containing eggs ± Dried milk ± Post-pasteurization contamination problems ± Improperly processed cheese Harrison FDST 8090 Dairy Foods - Issues ± Today’s responsible pathogens - Salmonella, Campylobacter, Listeria monocytogenes, E. coli O157:H7 ± Mycobacterium paratuberculosis ± Linked to Crohn’s disease (regional ileitis - intestinal inflammation leading to intestinal obstruction) ± Heat resistant? Harrison FDST 8090 Raw Milk - Composition ± pH - 6.6 ± a w -0 .99 ± Fat - 3.25%; usually not readily used by m/o ± Proteins - ~3.2%; degraded readily ± Carbohydrate - Lactose; m/o producing lactase and beta-galactase readily use ±
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This note was uploaded on 04/08/2011 for the course FDST 4080 taught by Professor Pegg during the Winter '10 term at University of Georgia Athens.

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micro_of_dairy_products - Microbiology of Dairy Products -...

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