Antimicrobial Activity of 1% Cetylpyridinium Chloride Against Listeria spp. on Fish |
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| Authors: | Catherine M Palmer Chong M Lee Nicole L Richard |
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| Institution: | Department of Nutrition and Food Sciences , University of Rhode Island , West Kingston, Rhode Island, USA |
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| Abstract: | Cetylpyridinium chloride (CPC) was evaluated as an antimicrobial against Listeria monocytogenes (LM) and Listeria innocua (LI) on fish. LI and LM showed the same reduction profile and the same minimum inhibitory and bactericidal concentrations. When CPC was applied to a diced fish matrix, reductions of 3.17–3.26 and 3.07–3.19 log were determined for LI and LM, respectively. Antimicrobial activity of CPC against LI resulted in initial reductions of 2.8–3.1 log in fresh fish fillets, 0.9–1.1 log in smoked fish fillets, and 3.2–3.4 log on fish skin. Effectiveness of CPC against total plate counts on fish skin showed reductions of 2.4–2.9 log. |
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| Keywords: | Listeria monocytogenes Listeria innocua fish smoked fish cetylpyridinium chloride (CPC) |
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