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Bactericidal Activity of Aqueous Chlorine and Chlorine Dioxide Solutions in a Fish Model System
Author(s) -
LIN WEIFANG,
HUANG TUNGSHI,
CORNELL JOHN A.,
LIN CHENGMAO,
WEI CHENGI
Publication year - 1996
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1996.tb10926.x
Subject(s) - chlorine , aqueous solution , chlorine dioxide , chemistry , listeria monocytogenes , nuclear chemistry , chlorite , inorganic chemistry , bacteria , biology , organic chemistry , paleontology , quartz , genetics
A commercial ClO 2 ‐producing solution killed mostly Escherichia coli, Listeria monocytogenes Scott A and its streptomycin‐resistant (Str R ) strain at 15, 10, and 7.5 ppm, respectively, while aqueous ClO 2 and chlorine achieved similar results against the tested strains at 20 and 25 ppm, respectively. Aqueous ClO 2 and the commercial solution were more effective than aqueous chlorine in killing Str R ‐ L. monocytogenes inoculated on fish cubes (mangrove snapper) at 3.4 × 10 3 or 2.4 × 10 6 CFU/g, as well as in solutions washed off the cubes. Fish cubes treated with aqueous chlorine or ClO 2 contained negligible chlorine residues, while the commercial treatment samples contained chlorite and some free and combined available chlorine.