Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Screening of Natural Plant Resources with Acetylcholinesterase Inhibition and Antioxidant Activity

천연 식물자원으로부터 Acetylcholinesterase 저해 및 항산화 활성 탐색

  • Kim, Dae-Ik (National Rural Resources Development Institute, NIAST) ;
  • Lee, Sung-Hyeon (National Rural Resources Development Institute, NIAST) ;
  • Hur, Eun-Young (National Rural Resources Development Institute, NIAST) ;
  • Cho, Soo-Muk (National Rural Resources Development Institute, NIAST) ;
  • Park, Hong-Ju (National Rural Resources Development Institute, NIAST)
  • 김대익 (농업과학기술원 농촌자원개발연구소) ;
  • 이성현 (농업과학기술원 농촌자원개발연구소) ;
  • 허은영 (농업과학기술원 농촌자원개발연구소) ;
  • 조수묵 (농업과학기술원 농촌자원개발연구소) ;
  • 박홍주 (농업과학기술원 농촌자원개발연구소)
  • Published : 2005.03.01
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Abstract

This study was performed to investigate the effect of natural plant extracts on acetylcholinesterase (AChE) activity and the free radical scavenging activity. The methanolic extracts of plants were tested for AChE inhibitory activity using Ellman's colorimetric method in 96-welled microplates and antioxidant activity as the scavenging effect of 1, 1-diphenyl-2-picryl hydrazyl radical (DPPH). The results showed that AChE activities were inhibited (about 20-30%) in whole plant extract of Daucus carota var. sativa, Hypericum erectum and Fragaria yezoensis. AChE activities were inhibited (about 32-34%) in stems extract of Gingko biloba and leaves extract of Rhododendrondron yedoensa var. poukhanense. Fruit extract of Zanthoxylum schinifolium inhibited (about 18%) AChE activity. And the DPPH scavenging effects as antioxidant activity were similar to L-ascorbic acid in whole plant extract of Fragaria yezoensis and fruits extract of Comus officinalis.

본 연구에서는 퇴행성 질환의 하나인 치매의 예방 및 치료를 위한 물질 탐색의 기초자료로서 식물 추출물에서 AChE 저해와 항산화 활성을 살펴보았다. AChE 효소의 저해 활성을 살펴본 결과, 식물 전초(whole plant) 추출물에서는 당근, 땃딸기와 고추나물에서 20%-30% AChE 저해 활성을 보였으며, 또한 식물 부위별(stem, leaf, fruit, root) 추출물의 AChE저 해 활성을 살펴본 결과, 줄기 부위 추출물에서는 은행나무(Gingko biloba)가 32.1%, 잎 부위 추출물에서는 산철쭉(Rhododendron yedoensa var. poukhanense)이 33.9%, 열매 부위 추출물에서는 선인장(Opuntia ficus-indica var. saboen)이 18.2%의 AChE 저해 활성을 보였다. 항산화 활성을 살펴본 결과, 식물 전초에서는 땃딸기(Fragaria yezoensis)에서 90.4%의 라디칼 제거 효과로 L-ascorbic acid와 거의 유사한 항산화력이 나타나났다. 식물 부위별 추출물의 라디칼 제거 효과를 살펴본 결과, 줄기와 뿌리 부위 추출물의 은행나무, 잎 추출물에서 털진달래(Rhododendron mucronulatum var. ciliatum)가 약 90%의 라디칼 제거 효과를 보였으며, 열매 부위 추출물의 산수유(Cornus officinalis)는 약 95% DPPH 라디칼 제거 효과로 가장 높은 항산화 활성을 보였다. 따라서 식물 전초 추출물의 땃딸기와 고추나물, 식물 부위별 추출물에서는 줄기 부위의 은행나무와 잎 부위의 산철쭉이 AChE 효소 저해와 항산화력 활성이 높으므로 퇴행성 질환의 하나인 치매를 예방하고 치료하는데 도움이 될 것으로 기대된다.

Keywords

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