Journal of fish pathology (한국어병학회지)

The Korean Society of Fish Pathology (한국어병학회)
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Disinfection effect of corona discharged plasma water on fish pathogens

코로나 방전 플라즈마 처리수에 의한 어류 병원체 소독 효과

  • 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)
  • 유진호 (선문대학교 수산생명의학과) ;
  • 이지현 (선문대학교 수산생명의학과) ;
  • 문성희 (선문대학교 수산생명의학과) ;
  • 권세련 (선문대학교 수산생명의학과) ;
  • 박태섭 ((주)진진이앤티) ;
  • 권준영 (선문대학교 수산생명의학과)
  • Received : 2020.06.08
  • Accepted : 2020.06.12
  • Published : 2020.06.30
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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

References

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