한국식품과학회지 (Korean Journal of Food Science and Technology)

한국식품과학회 (Korean Society of Food Science and Technology)
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10가지 식용식물 추출물의 가바, 글루탐산 함량, 아세틸콜린에스테라제 억제 및 라디컬 소거능 비교

A Comparative Study of GABA, Glutamate Contents, Acetylcholinesterase Inhibition and Antiradical Activity of the Methanolic Extracts from 10 Edible Plants

  • 정연섭 (계명대학교 식품가공학과) ;
  • 박성진 (계명대학교 식품가공학과) ;
  • 김지은 (계명대학교 식품가공학과) ;
  • 양선아 (계명대학교 전통미생물자원개발및산업화연구센터) ;
  • 박정현 (계명대학교 전통미생물자원개발및산업화연구센터) ;
  • 김정현 (금오공과대학교 응용화학과) ;
  • 지광환 (금오공과대학교 응용화학과) ;
  • 이삼빈 (계명대학교 식품가공학과) ;
  • 이인선 (계명대학교 식품가공학과)
  • Jung, Yeon-Seop (Department of Food Science and Technology, Keimyung University) ;
  • Park, Sung-Jin (Department of Food Science and Technology, Keimyung University) ;
  • Kim, Ji-Eun (Department of Food Science and Technology, Keimyung University) ;
  • Yang, Seun-Ah (The Center for Traditional Microorganism Resources, Keimyung University) ;
  • Park, Jung-Hyun (The Center for Traditional Microorganism Resources, Keimyung University) ;
  • Kim, Jung-Hyun (Department of Applied Chemistry, Kumoh National Institute of Technology) ;
  • Jhee, Kwang-Hwan (Department of Applied Chemistry, Kumoh National Institute of Technology) ;
  • Lee, Sam-Pin (Department of Food Science and Technology, Keimyung University) ;
  • Lee, In-Seon (Department of Food Science and Technology, Keimyung University)
  • 투고 : 2012.04.18
  • 심사 : 2012.07.05
  • 발행 : 2012.08.31
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초록

본 실험에서는 식용 가능한 10종 식물의 인지기능 개선 관련 효능을 검토하기 위하여 추출물의 AChE 억제활성과 DPPH, ABTS 라디컬 소거활성을 비교하였으며, GABA 및 글루탐산의 함량을 측정하였다. 그 결과, GABA 함량은 오미자 추출물에서 14.8mg/g으로 가장 높게 나타났으며, 천궁과 하수오 추출물에서도 각각 3.1 mg/g과 5.4 mg/g으로 비교적 높게 나타났다. AChE 저해활성은 오미자, 헛개나무, 측백엽, 가시오가피 추출물이 1 mg/mL에서 각각 33, 26.6, 20.7%, 그리고 17.8%의 저해율을 나타내어 10종 추출물 중 높게 나타났다. 또한, DPPH 및 ABTS에 대한 라디컬 소거능은 헛개나무, 측백엽, 가시오가피, 오미자 추출물에서 매우 강하게 나타났다. 글루타민산은 석창포 외의 9가지 추출물에서 고르게 존재하는 것으로 나타났다. 본 연구에서 검토한 10종 추출물 중 특히 오미자는 뇌의 대사를 향상시켜 뇌기능을 촉진시키는 GABA의 함량이 높은 것과 함께 AChE 억제 활성도 가장 높았으며, 라디컬 소거효과도 비교적 높게 나타나 뇌기능 개선을 위한 뛰어난 소재로 나타났다. 또한, AChE 억제 활성과 라디컬 소거능이 높게 나타난 헛개나무, 가시오가피 및 측백엽의 인지기능 개선을 위한 기능성식품 소재로서의 활용 가능성을 확인하였다. 본 연구 결과를 통하여 인지기능 개선 효능과 관련하여 사용되는 지표 중 AChE 억제 활성과 식물 추출물의 라디컬 소거활성과의 상관관계를 나타내는 경향을 확인하였으며, GABA 및 체내에서 GABA로 전환되는 글루탐산 함량이 직접적인 AChE 억제 효과를 나타내지는 않았다.

In order to investigate the efficacies for cognitive function of edible plants, we measured the inhibitory effects of acetylcholinesterase(AChE) activity, radical scavenging activities, and the contents of GABA and glutamate in the plant extracts. Among the plant extracts, Schizandra chinensis contained the highest GABA 14.8 mg/g and the extracts of Cnidium officinale and Polygonum multiflorum also had a relatively high GABA. On the other hand, plant extracts except, Acorus gramineus, showed similar glutamate contents. S. chinensis, Hovenia dulcis, Thuja orientalis, and Eleutherococcus senticosus exhibited high inhibition against AChE activities at about 18-33% at 1 mg/mL. In addition, strong radical scavenging activities were also detected in those extracts which showed high AChE inhibition. Taken together, H. dulcis, T. orientalis, E. senticosus, and S. chinensis could be effective resources for enhancing cognitive function. Further, it was suggested that the AChE inhibitory activities of plant extracts might be related to antioxidative activity.

키워드

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