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Inactivation of bacteria in seawater by low-amperage electric current

Author:
Park, J.C., Lee, M.S., Lee, D.H., Park, B.J., Han, D.W., Uzawa, M., Takatori, K.
Source:
Applied and environmental microbiology 2003 v.69 no.4 pp. 2405-2408
ISSN:
0099-2240
Subject:
mariculture, seawater, decontamination, Vibrio parahaemolyticus, food pathogens, inactivation, electrical treatment, electric current, foodborne illness, seafoods, fish
Abstract:
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.
Agid:
1409891