Antimicrobial Effect of Acidified Sodium Chlorite (ASC) on Whole Croaker

  • Lee, Byung-Doo (Department of Food Science and Technology and Institute of Agricultural Science and Technology, Chonnam National University) ;
  • Koo, Ja-Heon (Department of Agriculture/Regulatory Science, University of Arkansas at Pine Bluff) ;
  • Jahncke, Michael L. (Virginia Seafood Agricultural Research and Extension Center) ;
  • Kim, Du-Woon (Department of Food and Nutrition, Chonnam National University) ;
  • Chung, Dong-Ok (Department of Culinary Art, Chodang University) ;
  • Eun, Jong-Bang (Department of Food Science and Technology and Institute of Agricultural Science and Technology, Chonnam National University)
  • Published : 2008.12.31


The antimicrobial effect of acidified sodium chlorite (ASC) solution on whole croaker skin was evaluated. Whole croaker skin was treated with ASC (50, 100, 200, 400, and 600 ppm) and distilled water. After 10-minute exposure to 600 ppm ASC, 8% of Gram-negative bacteria survived on the whole croaker sample. Treatment with 50 ppm ASC eliminated all coliforms in the initial load. Immersion treatment with 600 ppm ASC resulted in $1.3\;log\;CFU/cm^2$ greater kill of the initial mesophile loads of control ($2.8\;log\;CFU/cm^2$) than distilled water. Fifty ppm ASC solution produced a 1.6-log reduction of psychrotrophic bacteria. ASC treatment was an effective method for reducing naturally occurring microflora on whole croaker skin.


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