Inactivation of Bacteria in Seawater by Low-Amperage Electric Current

Autor: Min Sub Lee, Dong Hee Lee, Masakazu Uzawa, Jong Chul Park, Bong Joo Park, Dong-Wook Han, Kosuke Takatori
Rok vydání: 2003
Předmět:
Zdroj: Applied and Environmental Microbiology. 69:2405-2408
ISSN: 1098-5336
0099-2240
DOI: 10.1128/aem.69.4.2405-2408.2003
Popis: 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.
Databáze: OpenAIRE