Abstract
ABSTRACTA commercial ClO2‐producing solution killed mostly Escherichia coli, Listeria monocytogenes Scott A and its streptomycin‐resistant (StrR) strain at 15, 10, and 7.5 ppm, respectively, while aqueous ClO2 and chlorine achieved similar results against the tested strains at 20 and 25 ppm, respectively. Aqueous ClO2 and the commercial solution were more effective than aqueous chlorine in killing StrR‐L. monocytogenes inoculated on fish cubes (mangrove snapper) at 3.4 × 103 or 2.4 × 106 CFU/g, as well as in solutions washed off the cubes. Fish cubes treated with aqueous chlorine or ClO2 contained negligible chlorine residues, while the commercial treatment samples contained chlorite and some free and combined available chlorine.
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