Abstract
Food product contamination from the post-processing environment is likely the most frequent cause of contaminated processed food product recalls and a significant source of poisoning outbreaks, and shelf life problems in North America with processed Ready-To-Eat foods. Conditions exist for the growth of microorganisms in most food processing factories. Failure to clean and effectively sanitize a microbial growth niche can lead to biofilm formation. Biofilms may be orders of magnitude more resistant to destruction by sanitizers. Cells in some biofilms have been shown to be 1,000 times more resistant to destruction than those which are freely suspended. This has implications for cleaning, sanitizing, sampling, and training. Sampling the factory environment is one means of monitoring the efficacy of microbiological control as well as a powerful tool for in-factory contamination investigation. Many sampling techniques exist and are discussed. It is important to recognize the difference between cleaning (removal of soil) and sanitization (reduction of microbial populations). Knowing where, when, and how to sample, how many samples to take, and what to test for and how to interpret test information is critical in finding and preventing contamination.
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References
Annous BA, Kozempel MF (1998) Influence of growth medium on thermal resistance of Pediococcus spp. NRRL B-2354 (formerly Micrococcus freudenreichii) in liquid food. J Food Prot 61:578–581
Chambers CW (1956) A procedure for evaluating the efficiency of bactericidal agents. J Milk Food Technol 19:183–187
DeBeer D, Srinivasan R, Stewart PS (1994) Direct measurement of chlorine penetration into biofilms during disinfection. Appl Environ Microbiol 6:4339–4344
Dhir VK, Dodd CER (1995) Susceptibility of suspended and surface-attached Salmonella to biocides and elevated temperatures. Appl Environ Microbiol 61:1731–1738
Evancho GM, Sveum WH, Moberg LJ, Frank JF (2001) Microbiological monitoring of the food processing environment, Chapter 3. In: Downes FP, Ito K (eds) Compendium of Methods for the Microbiological Examination of Foods. American Public Health Association, Washington, DC
Faust RE, Gabis DA (1988) Controlling microbial growth in food processing environments. Food Tech 42:81–82, 89
Fletcher M (1976) The effects of proteins on bacterial attachment to polystyrene. J Gen Microbiol 94:400–404
Kornacki JL, Evanson DJ, Reid W, Rowe K, Flowers RS (1993) Evaluation of the USDA protocol of detection of Listeria monocytogenes. J Food Prot 56(5): 441–443
Kornacki JL (1999/2000) The nuts and bolts of food safety. Food Testing Anal 40:18–22
Ma L, Kornacki JL, Zhang G, Lin CM, and Doyle MP (2007) Development of thermal surrogate microorganisms in ground beef for in-plant critical control point validation studies. J Food Prot 70(4):952–957
Kornacki JL (2006) Industry Case Studies, Applied Use of Surrogate Microorganisms, Surrogate Microorganisms: Selection, Use, and Validation, Session S07, IAFP Annual Meeting, Calgary, 14 August 2006
Kornacki JL, Marth EH (1993) Thermal inactivation of Salmonella senftenberg and Micrococcus freudenreichii in retentates from ultrafiltered milks. Lebensm–Wiss U-Technol 26:21–27
Kornacki JL, Johnson JL (2001) Enterobacteriaceae, coliforms and Escherichia coli as quality and safety indicators, Chapter 8. In: Downes FP, Ito K (eds) Compendium of Methods for the Microbiological Examination of Foods, 4th edn. American Public Health Association, Washington, DC
Moore G, Griffith C, Fielding L (2001) A comparison of traditional and recently developed methods for monitoring surface hygiene within the food industry: A laboratory study. Dairy, Food Environ Sanit 21(6):478–488
Ng H, Bayne HG, Garibaldi JA (1969) Heat resistance of Salmonella: The uniqueness of Salmonella senftenberg 775 W. Appl Microbiol 17:78–82
Silliker JH, Gabis DA (1975) A cellulose sponge sampling technique for surfaces. J Milk Food Technol 38(9):504
Speck ML (1947) The resistance of Micrococcus freudenreichii in laboratory-high-temperature-short-time pasteurization of milk and ice cream mix. J Dairy Sci 30:975–981
Speck ML, Lucas HL (1951) Some observations on the high-temperature short-time pasteurization of chocolate milk. J Dairy Sci 34:333–341
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Kornacki, J.L. (2010). How Do I Sample the Environment and Equipment?. In: Kornacki, J. (eds) Principles of Microbiological Troubleshooting in the Industrial Food Processing Environment. Food Microbiology and Food Safety. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-5518-0_7
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DOI: https://doi.org/10.1007/978-1-4419-5518-0_7
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