Decontamination effect of electrolysed NaCl solutions on carp

Letters in Applied Microbiology
Barakat S M MahmoudTetsuya Suzuki

Abstract

To evaluate the efficacy of electrolysed NaCl solutions (EW) for disinfecting bacterial isolates from carp, and the potential application of EW to reducing the bacterial load in whole carp and carp fillets. EW was produced by using a two-compartment batch-type electrolysed apparatus. Pure cultures (in vitro), whole carp (skin surface) and carp fillets were treated with EW to detect its antimicrobial effects. The anodic solution [EW (+)] completely inhibited growth of the isolates. Furthermore, dipping the fish samples in EW (+) reduced the mean total count of aerobic bacteria on the skin of whole carp and in fillets by 2.8 and 2.0 log(10), respectively. The cathodic solution [EW (-)] also reduced growth of the isolates from carp by ca 1.0 log(10). Moreover, the total counts of aerobic bacteria in whole carp (on the skin) and fillets were reduced by 1.28 and 0.82 log(10), respectively. EW (+) has a strong bactericidal effect on bacteria isolated from carp. Treatment with EW (+) could extend the shelf life of these fish.

References

May 8, 1997·Biochemical and Biophysical Research Communications·S ShirahataY Katakura
May 12, 2001·Journal of Food Protection·S KosekiK Itoh
Jan 5, 2002·Journal of Agricultural and Food Chemistry·Tetsuya SuzukiYuko Yamaya
Jan 24, 2002·Journal of Agricultural and Food Chemistry·Tetsuya SuzukiKunimoto Hotta
Feb 15, 2002·International Journal of Food Microbiology·Hoon ParkRobert E Brackett
Jan 1, 1999·Bioscience, Biotechnology, and Biochemistry·K MiyashitaT Suzuki

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Citations

Apr 11, 2012·Journal of Food Protection·Kathleen T Rajkowski, Christopher H Sommers
Sep 25, 2008·Journal of Food Protection·D HricovaC Zweifel

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