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http://dx.doi.org/10.3746/jkfn.2008.37.10.1337

Efficacy of Chemical Sanitizers in Reducing Levels of Foodborne Pathogens and Formation of Chemically Injured Cells on Cabbage  

Choi, Mi-Ran (Department of Food and Nutrition, Chung-Ang University)
Oh, Se-Wook (Food Safety Research Division, Korea Food Research Institute)
Lee, Sun-Young (Department of Food and Nutrition, Chung-Ang University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.37, no.10, 2008 , pp. 1337-1342 More about this Journal
Abstract
This study was conducted to investigate effects of chemical sanitizers on inhibiting foodborne pathogens, such as Listeria monocytogenes (L. monocytogenes), Salmonella Typhimurium (S. Typhimurium), and E scherichia coli O157:H7 (E. coli O157:H7), on cabbages. Cabbages were inoculated with the culture cocktail of pathogens and treated with water, 100 ppm commercial chlorine, and 50, 100, and 200 ppm chlorine dioxide ($ClO_2$) for 1, 5, and 10 min at room temperature ($22{\pm}2^{\circ}C$). Treatments with water did not significantly reduce levels of three pathogens whereas other treatments with chemical sanitizers significantly reduced levels of three pathogens. Treatment with 200 ppm $ClO_2$ for 10 min was the most effective at inhibiting pathogens and reduction levels were 1.90, 1.92, and 1.98 log CFU/g for L. monocytogens, S. Typhimurium, and E. coli O157:H7, respectively. Levels of reduction were increased with the increase of $ClO_2$ concentrations. When chemically injured cells were investigated, there were no significant differences on the levels of injured cells between before and after treatment with commercial chlorine and $ClO_2$. These results suggest that $ClO_2$ can be used as an alternative sanitizer for reducing pathogens on fresh produces.
Keywords
chemical sanitizer; chlorine dioxide; foodborne pathogens; cabbage; injured cells;
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Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 1
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