Biological Evaluation of the Methanolic Extract of Eriobotrya japonica and Its Irradiation Effect

비파 메탄올 추출물의 생리활성 및 방사선 조사 효과

  • Kim, Hee-Jung (Radiation Food Science & Biotechnology Team, Korea Atomic Energy Research Institute) ;
  • Jo, Cheor-Un (Department of Animal Science and Biotechnology, Chungnam National University) ;
  • Kim, Tae-Hoon (Radiation Food Science & Biotechnology Team, Korea Atomic Energy Research Institute) ;
  • Kim, Dong-Sup (Radiation Food Science & Biotechnology Team, Korea Atomic Energy Research Institute) ;
  • Park, Moon-Young (Subtropical Fruit Crops Experiment Station, Jeonnam Agricultural Research & Extension Services) ;
  • Byun, Myung-Woo (Radiation Food Science & Biotechnology Team, Korea Atomic Energy Research Institute)
  • 김희정 (한국원자력연구소 방사선식품.생명공학연구팀) ;
  • 조철훈 (충남대학교 동물자원생명과학과) ;
  • 김태훈 (한국원자력연구소 방사선식품.생명공학연구팀) ;
  • 김동섭 (한국원자력연구소 방사선식품.생명공학연구팀) ;
  • 박문영 (전남농업기술원 난지과수시험장) ;
  • 변명우 (한국원자력연구소 방사선식품.생명공학연구팀)
  • Published : 2006.10.01


Eriobotrya japonica has been used as a folk medicine for treatment of skin diseases, inflammation, coughing, phlegm, and ulcers in Korea and other Asian countries. In a search for possible bioactive agents from natural sources, we found that the methanolic extracts from various parts of E. japonica showed moderate antioxidative and antimicrobial activities in several in vitro bioassay systems. Additionally, the respective parts of E. japonica were irradiated at 20 kGy to investigate the effects of irradiation. Gamma irradiation of E. japonica extracts removed the deep greenish color without affecting its natural biological activities such as its antioxidative and antimicrobial properties. Based on these findings, the methanolic extracts of this plant source may be not affected by gamma irradiation as its bioactive constituents may be insensitive to this irradiation. Moreover, the methanolic extract of E. japonica may serve as a good natural resource for beneficial functions in food and other related industries.


Eriobotrya japonica;loquat;antioxidative;antimicrobial;irradiation


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