Our good friend Dr. Mark Berrang shared his recent research on decontaminating floor drains with chlorine dioxide pods. This may be useful for many facilities beyond the poultry processing facilities where the research was conducted, especially those facilities that have problems with drain backups. This method was able to achieve a 8.7 log reduction in the drain water and 6.7 log reduction of cells attached to drain piping.
Contact me if you want a copy of the paper or the supplier contact used in this research. (we of course, are not endorsing any one supplier).
JAPR Research Report
Self-contained chlorine dioxide generation and delivery pods for decontamination of floor drains
1 M. E. Berrang,∗,2 M. A. Harrison,† R. J. Meinersmann,∗ and G. R. Gamble∗
∗USDA-Agricultural Research Service, U.S. National Poultry Research Center, Athens GA
30605; and †University of Georgia, Department of Food Science and Technology,
Athens GA 30602
Primary Audience: commercial poultry processors and further processors, quality assurance
personnel, poultry food safety researchers.
SUMMARY
Listeria monocytogenes can be present in poultry processing and further processing plants, where it can colonize floor drains. This is a concern as the potential exists for cross contamination of product contact surfaces or even fully cooked product. Self-contained chlorine dioxide-generating and delivery pods were tested as a means to sanitize uninoculated floor drains and L. monocytogenes-inoculated model floor drains. Free-swimming and attached bacteria were enumerated in drains. Standing water and the inner surface of treated drains had significantly lower bacterial numbers than did untreated drains. Listeria monocytogenes numbers decreased by up to 8.7 log cfu/mL in standing water (>99.999999%) and 6.7 log cfu (>99.9999%) as attached cells. Commercially available chlorine dioxide pods may have practical utility for killing L. monocytogenes during periodic sanitization of floor drains in poultry processing facilities.
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