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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Saini, Jasdeep K. Marsden, James L. Getty, Kelly J. K. Fung, Daniel Y. C. |
| Description | Author Affiliation: Saini JK ( Food Science Institute and Department of Animal Sciences and Industry, Kansas State University , Manhattan, Kansas.) |
| Abstract | Listeria monocytogenes is difficult to control in food and processing environments due to its widespread nature and ability to survive in a range of adverse conditions, including low temperatures, pH, and high salt concentrations. The objective of this study was to evaluate the efficacy of Photohydroionization™ (PHI; RGF Environmental Group, Inc., Riviera, Beach, FL), a novel advanced oxidation technology, as a surface treatment to control L. monocytogenes on food-contact surfaces, sliced American cheese, and ready-to-eat (RTE) turkey. A five-strain cocktail of L. monocytogenes was used to inoculate sample surfaces. Food-contact surfaces were exposed to ultraviolet and other oxidative gases produced by the PHI system for 10, 20, 30, 45, 60, and 120 s and 5, 10, and 15 min; cheese and turkey samples were treated for 30, 60, and 120 s and 5 min. For each matrix at each time point, seven samples were treated and enumerated by plating appropriate dilutions onto modified oxford medium and thin-agar-layer modified oxford medium. Results showed reductions (p<0.05) in L. monocytogenes: 4.37 log colony-forming units (CFU)/coupon on stainless steel after 15-min treatment. A 1.39 and 1.63 log CFU/sample after 120 s and 2.16 and 2.52 log CFU/sample after 5 min were seen on American cheese and ready-to-eat turkey, respectively. Lipid oxidation analyses performed on cheese and turkey samples indicated that PHI treatment did not affect (p>0.05) thiobarbituric acid-reactive substances values. This study demonstrates the efficacy of PHI treatment to reduce L. monocytogenes on stainless steel and RTE foods and may serve as a processing intervention to ensure safe production of food. |
| File Format | HTM / HTML |
| ISSN | 15353141 |
| Issue Number | 4 |
| Volume Number | 11 |
| e-ISSN | 15567125 |
| Journal | Foodborne Pathogens and Disease |
| Language | English |
| Publisher | Mary Ann Liebert, Inc. |
| Publisher Date | 2014-04-01 |
| Publisher Place | United States |
| Access Restriction | Subscribed |
| Subject Keyword | Discipline Microbiology Discipline Parasitology Discipline Nutritional Sciences Food Microbiology Listeria Monocytogenes Radiation Effects Listeriosis Prevention & Control Poultry Products Microbiology Animals Cheese Colony Count, Microbial Consumer Product Safety Fast Foods Food-processing Industry Methods Gases Pharmacology Humans Hydrogen Peroxide Growth & Development Oxidation-reduction Ozone Stainless Steel Sterilization Time Factors Turkeys Ultraviolet Rays Water Metabolism Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Animal Science and Zoology Microbiology Applied Microbiology and Biotechnology Food Science |
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