Journal of the East Asian Society of Dietary Life (동아시아식생활학회지)

The East Asian Society of Dietary Life (동아시아식생활학회)
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Antioxidant Capacities and Inhibitory Activity on Angiotension Converting Enzyme of Dried Lotus Root by Different Pretreatment

박피 유무에 따른 전처리 백연근의 항산화능 및 항고혈압능 효과

  • Kim, Jin-Sook (Dept. of Agro-Food Resources, National Academy of Agricultural Science, Rural Development Administraction) ;
  • Hwang, Dong-Ju (Dept. of Agro-Food Resources, National Academy of Agricultural Science, Rural Development Administraction) ;
  • Kang, Eun-Jung (Dept. of Agro-Food Resources, National Academy of Agricultural Science, Rural Development Administraction) ;
  • Kim, Kyung-Mi (Dept. of Agro-Food Resources, National Academy of Agricultural Science, Rural Development Administraction) ;
  • Choi, Song-Yi (Dept. of Agro-Food Resources, National Academy of Agricultural Science, Rural Development Administraction) ;
  • Kim, Gi-Chang (Dept. of Agro-Food Resources, National Academy of Agricultural Science, Rural Development Administraction)
  • 김진숙 (농촌진흥청 국립농업과학원 농식품자원부) ;
  • 황동주 (농촌진흥청 국립농업과학원 농식품자원부) ;
  • 강은정 (농촌진흥청 국립농업과학원 농식품자원부) ;
  • 김경미 (농촌진흥청 국립농업과학원 농식품자원부) ;
  • 최송이 (농촌진흥청 국립농업과학원 농식품자원부) ;
  • 김기창 (농촌진흥청 국립농업과학원 농식품자원부)
  • Received : 2015.04.23
  • Accepted : 2015.07.09
  • Published : 2015.08.31
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Abstract

This study investigated the antioxidant capacities and inhibitory activity of peeled lotus root (Nelumbo nucifera) as a food material on angiotension-converting enzyme (ACE). The antioxidant effects on total polyphenol and total flavonoid contents were not signicant. However, DPPH radical scavenging activity decreased from 85.07% to 80.70% by peeled treatment. SOD-like activity decreased from 20.84% to 17.97%, and ACE inhibitory activity decreased from 53.4% to 50.1% by peeled treatement. Thus, consumption of non-peeled lotus root should increase.

본 연구는 혈관벽 강화, 콜레스테롤 저하작용, 위벽보호, 해독작용, 치매예방 등의 효과가 있는 것으로 알려진 연근의 가공 식품 소재로써 활용 편의성을 높이고자 전처리 단계 중 인력에너지 소모가 많은 부분인 박피공정 처리 여부에 따른 연근의 항산화능 및 항고혈압능을 조사하였다. 연근의 박피여부에 따라 총 폴리페놀 함량, 총 플라보노이드함량은 시료간 차이를 보이지 않았다. 박피하지 않은 연근의 경우, DPPH 전자공여능은 85.07%, SOD 유사활성은 20.84% 그리고 ACE 저해활성은 53.4%로 박피한 연근보다 높았다. 통상적으로 연근은 조리용 또는 가공식품 소재로 이용할 때 껍질의 떫은 맛, 색깔 등과 같은 이유로 박피 과정을 가지게 되는데, 본 실험결과, 박피로 인해 연근이 가지는 항산화능 및 항고혈압능이 특성에 따라 일부 감소하는 경향을 보였다. 따라서 연근 사용 시 당연하게 수반되었던 박피 전처리 공정의 생략 여부를 고민하는 것이 더 좋을 것으로 판단된다. 더불어 연근의 껍질에도 항산화에 도움이 되는 유용성분이 다량 함유되어 있을 것이기 때문에 연근의 과육과 껍질의 성분 분석, 항산화능 및 생리활성 분석을 통해 연근의 껍질에 관한 연구가 진행되어야 할 것이며, 연근의 일반적인 박피 이외 다양한 전처리 과정을 통한 성분 분석 및 생리활성에 관한 연구가 추가적으로 진행되면 좋을 것이라 판단된다.

Keywords

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