Dynamic effects of free chlorine concentration, organic load, and exposure time on the inactivation of salmonella, escherichia coli O157:H7, and Non-O157 shiga toxin-producing E. coli

Journal of Food Protection

Volumn 76, Issue 3, 2013, Pages 386-393

  Shen, Cangliang ^a,b   Luo, Yaguang ^a   Nou, Xiangwu ^a   Wang, Qin ^b   Millner, Patricia ^a  

^a AGRICULTURAL RESEARCH SERVICE   (United States)

^b UNIVERSITY OF MARYLAND   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BACTERIA (MICROORGANISMS); ESCHERICHIA COLI; LACTUCA; LYCOPERSICON ESCULENTUM; SALMONELLA;

EID: 84875527222     PISSN: 0362028X     EISSN: None     Source Type: Journal    
DOI: 10.4315/0362-028X.JFP-12-320     Document Type: Article

References (28)

1. Adams, M. R., A. D. Hartley, and L. J. Cox. 1989. Factors affecting the efficacy of washing procedures used in the production of prepared salads. Food Microbiol. 6:69-77.
2. Allende, A., M. V. Selma, F. López-Gálvez, R. Villaescusa, and M. I. Gil. 2008. Impact of wash-water quality on sensory and microbial quality, including Escherichia coli cross-contamination, of fresh-cut escarole. J. Food Prot. 12:2514-2518.
3. Anonymous. 2007. Tomato best practices manual: a guide to tomato good agricultural practices. Available at: http://www.freshfromflorida. com/fs/TomatoBestPractices.pdf. Accessed 5 September 2012.
4. Anonymous. 2008. Commodity specific food safety guidelines for the fresh tomato supply. Available at: http://www.fda.gov/Food/Food Safety/Product- SpecificInformation/FruitsVegetablesJuices/Guidance ComplianceRegulatoryInformation/ucm171695.htm. Accessed 5 September 2012.
5. Beuchat, L. R. 1999. Survival of enterohemorrhagic Escherichia coli O157:H7 in bovine feces applied to lettuce and the effectiveness of chlorinated water as a disinfectant. J. Food Prot. 62:845-849.
6. Carlson, S. 1991. Fundamentals of water disinfection. J. Water SRT Aqua 40:346-356.
7. Center for Produce Safety. 2012. Grants program: Center for Produce Safety 2012 request for proposals. Available at: https://cps.ucdavis. edu/grant-opportunities.php. Accessed 15 July 2012.
8. Eblen, D. R. 2008. Public health importance of non-O157 Shiga toxin-producing Escherichia coli (non-O157 STEC) in the U.S. food supply. Available at: http://www.fsis.usda.gov/PDF/STEC-101207. pdf. Accessed 15 July 2012.
9. Erkmen, O. 2010. Antimicrobial effects of hypochlorite on Escherichia coli in water and selected vegetables. Foodborne Pathog. Dis. 7:953-958.
10. Gil, M. I., M. V. Selma, F. Lopez-Galvez, and A. Allende. 2009. Fresh-cut produce sanitation and wash-water disinfection: problems and solutions. Int. J. Food Microbiol. 134:37-45.
11. Gonzalez, R. J., Y. Luo, S. Ruiz-Cruz, and J. L. McEvoy. 2004. Efficacy of sanitizers to inactivate Escherichia coli O157:H7 on fresh-cut carrot shreds under simulated process water conditions. J. Food Prot. 67:2375-2380.
12. Hanning, I. B., J. D. Nutt, and S. C. Ricke. 2009. Salmonellosis outbreaks in the United States due to fresh produce: source and potential intervention measures. Foodborne Pathog. Dis. 6:635-648.
13. Li, Y., R. E. Brackett, J. Chen, and L. R. Beuchat. 2001. Survival and growth of Escherichia coli O157:H7 inoculated onto cut lettuce before or after heating in chlorinated water, followed by storage at 5 or 15uC. J. Food Prot. 64:305-309.
14. Lopez-Galvez, F., A. Allende, M. V. Selma, and M. I. Gil. 2009. Prevention of Escherichia coli cross-contamination by different commercial sanitizers during washing of fresh-cut lettuce. Int. J. Food Microbiol. 133:167-171.
15. Luo, Y. 2007. Fresh-cut produce wash water reuse affects water quality and packaged product quality and microbial growth in romaine lettuce. Hort. Sci. 42:1413-1419.
16. Luo, Y., X. Nou, P. Millner, B. Zhou, C. Shen, Y. Yang, Y. Wu, Q. Wang, H. Feng, and D. Shelton. 2012. A pilot plant scale evaluation of a new process aid for enhancing chlorine efficacy against pathogen survival and cross-contamination during produce wash. Int. J. Food Microbiol. 158:133-139.
17. Luo, Y., X. Nou, Y. Yang, I. Alegre, E. Turner, H. Feng, M. Abadias, and W. Conway. 2011. Determination of FC concentrations needed to prevent Escherichia coli O157:H7 cross-contamination during freshcut produce wash. J. Food Prot. 74:352-358.
18. Mathusa, E. C., Y. Chen, E. Enache, and L. Hontz. 2010. Non-O157 Shiga toxin-producing Escherichia coli in foods. J. Food Prot. 73: 1721-1736.
19. Noah, C. W., C. I. Shaw, J. S. Ikeda, K. S. Kreuzer, and J. N. Sofos. 2005. Development of green fluorescent protein-expressing bacterial strains and evaluation for potential use as positive controls in sample analyses. J. Food Prot. 68:680-686.
20. Rice, E. W., R. M. Clark, and C. H. Johnson. 1999. Chlorine inactivation of Escherichia coli O157:H7. Emerg. Infect. Dis. 5: 461-463.
21. Schneider, K., Y. Luo, S. Sargent, and R. Schneider. 2011. Evaluation and optimization of postharvest intervention strategies for the reduction of bacterial contamination on tomatoes. Available at: https://cps.ucdavis.edu/ researchproject/258/awards/Evaluation-and- optimization-of-postharvest- intervention-strategies-for-the-reduction- of-bacterial-contamination-on- tomatoes.html. Accessed 5 September 2012.
22. Sivapalasingam, S., C. R. Friedman, L. Cohen, and R. V. Tauxe. 2004. Fresh produce: a growing cause of outbreaks of foodborne illness in the United States, 1973 through 1997. J. Food Prot. 67: 2342-2353.
23. Suslow, T. 2011. Establishment of critical operating standards for chlorine dioxide in disinfection of dump tank and flume water for fresh tomatoes. Available at: https://cps.ucdavis.edu/amass/documents/ researchproject/266/093010final%20Suslow%20Establishment%20of% 20critical%20operating%20standards.pdf. Accessed 5 September 2012.
24. U.S. Food and Drug Administration. 2009. Methods to reduce- eliminate pathogens from produce and fresh-cut produce, analysis and evaluation of preventive control measures for the control and reduction/elimination of microbial hazards on fresh and fresh-cut produce, chap. 5. In Analysis and evaluation of preventive control measures for the control and reduction/elimination of microbial hazards on fresh and fresh-cut produce. Available at: http://www.fda. gov/Food/ScienceResearch/ResearchAreas/ SafePracticesforFoodProcesses/ ucm091363.htm. Accessed 11 July 2012.
25. White, G. C. 2010. White's handbook of chlorination and alternative disinfectants, 5th ed. Black and Veach Corporation. John Wiley and Sons, Inc., Hoboken, NJ.
26. Yang, Y., Y. Luo, P. Millner, D. Shelton, and X. Nou. 2012. Enhanced chlorine efficacy against bacterial pathogens in wash solution with high organic loads. J. Food Process. Preserv., in press. doi:10.1111/jfpp.12000.
27. Zhao, T., M. P. Doyle, P. Zhao, P. Blake, and F. M. Wu. 2001. Chlorine inactivation of Escherichia coli O157:H7 in water. J. Food Prot. 64:1607-1609.
28. Zhao, T., P. Zhao, J. W. West, J. K. Bernard, H. G. Cross, and M. P. Doyle. 2006. Inactivation of enterohemorrhagic Escherichia coli in rumen content or feces contaminated drinking water for cattle. Appl. Environ. Microbiol. 72:3268-3273.