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http://dx.doi.org/10.7847/jfp.2020.33.1.063

Disinfection effect of corona discharged plasma water on fish pathogens  

You, Jin Ho (Department of Aquatic Life Medical Sciences, Sunmoon University)
Lee, Ji Hyun (Department of Aquatic Life Medical Sciences, Sunmoon University)
Mun, Seong Hee (Department of Aquatic Life Medical Sciences, Sunmoon University)
Kwon, Se Ryun (Department of Aquatic Life Medical Sciences, Sunmoon University)
Park, Tae Sup (JIN JIN E&T Co., Ltd.)
Kwon, Joon Yeong (Department of Aquatic Life Medical Sciences, Sunmoon University)
Publication Information
Journal of fish pathology / v.33, no.1, 2020 , pp. 63-69 More about this Journal
Abstract
Fish culture is constantly threatened by various infectious diseases which are largely transmitted by water. Plasma technology is being used to sterilize polluted water in many industries. In this study, two bacterial pathogens Aeromonas salmonicida and Streptococcus iniae, and a virus (viral hemorrhagic septicemia virus, VHSV) were subjected to plasma water that was produced by a corona discharge system. Growth of A. salmonicida was greatly inhibited from 105.61 CFU/ml in positive control to 103.51 CFU/ml in treated group by only 60 sec contact with plasma water. Similarly, S. iniae was inhibited from 105.85 CFU/ml to 103.40 CFU/ml. VHSV titer also decreased from 104.1 TCID50/ml to 101.45 TCID50/ml by the same treatment. Activation of water by the plasma was confirmed by the existence of ozone in the plasma water. These results suggest that plasma water could efficiently disinfect fish pathogens, possibly by the action of reactive oxygen species contained in the plasma water.
Keywords
Plasma; Corona discharge; Ozone; Aeromonas salmonicida; Streptococcus iniae; Viral hemorrhagic septicemia virus (VHSV);
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Times Cited By KSCI : 2  (Citation Analysis)
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