Fate of Listeria on Various Surfaces When Treated with Bacteriophage The study objective was to determine efficacy of a bacteriophage suspension against Listeria spp. when applied to three common types of materials used in food manufacturing facilities: two food contact materials (stainless steel and polyurethane thermoplastic belting) and one noncontact material (epoxy flooring). Coupons of each material were inoculated with a cocktail containing L. monocytogenes and L. innocua. Treated samples were held at 4°C or 20°C for one and three hours to determine the effect of temperature and treatment time. Higher phage concentration, longer treatment time, and a processing area temperature of 20°C showed a greater reduction of Listeria on the stainless‐steel and polyurethane thermoplastic belting coupons. Journal of Food Safety. 2020;40:e12775.
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