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Comparison of Antibacterial Ability of Air Filter Media Treated with a Natural Antibacterial Agent by Three Treatment Methods

항균성 천연물질의 도포방법에 따른 에어필터 여재의 항균 특성 비교

  • Park, Sun Young (Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology) ;
  • Jung, Jae Hee (Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology) ;
  • Hwang, Gi Byung (Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology) ;
  • Bae, Gwi-Nam (Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology) ;
  • Kim, Yong Pyo (Department of Environmental Science & Engineering, Ewha Womans University) ;
  • Nho, Chu Won (Functional Food Center, KIST Gangneung)
  • 박선영 (한국과학기술연구원 환경복지연구단) ;
  • 정재희 (한국과학기술연구원 환경복지연구단) ;
  • 황기병 (한국과학기술연구원 환경복지연구단) ;
  • 배귀남 (한국과학기술연구원 환경복지연구단) ;
  • 김용표 (이화여자대학교 환경공학과) ;
  • 노주원 (한국과학기술연구원 강릉분원 기능성천연물센터)
  • Received : 2011.03.17
  • Accepted : 2013.03.04
  • Published : 2013.04.30

Abstract

Various antimicrobial technologies have been developed to inactivate bioaerosols in indoor environments. In this study, air filter media were treated with a natural antibacterial agent of Sophora flavescens in order to inactivate the bacteria collected on the air filter. Three treatment methods were applied to manufacture the test antibacterial air filter media: electrospray, nebulization and dip-coating methods. In case of electrospray and nebulization processes, the size distribution of aerosolized natural antibacterial agent was measured using a scanning mobility particle sizer. Staphylococcus epidermidis bacteria were aerosolized to test inactivation of the filter media treated with a natural antibacterial agent. The pressure drop and the antibacterial efficiency of the filter media increased with increasing the mass loading of natural antibacterial agent in each treatment method. The antibacterial efficiency per loaded antibacterial agent mass by the electrospray method was the highest and the filter treated by the dip-coating method was the lowest among three treatment methods.

Keywords

References

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