Inactivation of bacteria in seawater by low-amperage electric current

Jong Chul Park, Min Sub Lee, Dong Hee Lee, Bong Joo Park, Dong Wook Han, Masakazu Uzawa, Kosuke Takatori

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


Seawater used in mariculture has been suspected of being a potential source of infection. In this study, the lethal effects of low-amperage electric treatment on microorganisms were examined in natural seawater and in seawater inoculated with Vibrio parahaemolyticus. In both cases, bacteria including V. parahaemolyticus in seawater were completely eliminated in 100 ms by a 0.5-A, 12-V direct current. Electron microscopic investigation of the electrically treated bacteria revealed substantial structural damage at the cellular level. In conclusion, our results indicate that low-amperage electric treatment is effective for rapid inactivation of microorganisms in seawater.

Original languageEnglish
Pages (from-to)2405-2408
Number of pages4
JournalApplied and Environmental Microbiology
Issue number4
Publication statusPublished - 2003 Apr 1

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Food Science
  • Applied Microbiology and Biotechnology
  • Ecology


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