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

  • 제36권8호
  • /
  • Pages.955-959
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  • 2007
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  • 1226-3311(pISSN)
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  • 2288-5978(eISSN)
한국식품영양과학회 (The Korean Society of Food Science and Nutrition)
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메밀싹 추출물의 항산화 효과 및 유전독성억제 효과

Antioxidation and Antigenotoxic Effects of Buckwheat Sprout Extracts

  • 김수현 (강원대학교 바이오산업공학부) ;
  • 이의용 (강원대학교 바이오산업공학부) ;
  • 함승시 (강원대학교 바이오산업공학부)
  • Kim, Su-Hyun (School of Bioscience and Biotechnology, Kangwon National University) ;
  • Lee, Eue-Yong (School of Bioscience and Biotechnology, Kangwon National University) ;
  • Ham, Seung-Si (School of Bioscience and Biotechnology, Kangwon National University)
  • 발행 : 2007.08.30
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초록

메밀싹을 건조 후 세절하여 70% 에탄올을 가하여 추출한 추출물과 용매의 극성에 따라 분별분리를 행하여 핵산, 클로로포름, 에틸아세테이트, 부탄올 및 물 분획물로 조제하여 여섯 가지의 추출물 및 분획물을 얻었다. 이들 시료들에 대하여 항산화활성을 측정한 결과 에틸아세테이트 분획물에서 $RC_{50}$ 값이 26.1 ${\mu}g/mL$의 강한 항산화활성을 나타내었다. 염색체 유발 물질인 MNNG(N-methyl-N'-nitro-N-nitro-soguanidine)를 마우스에 50, 100, 150 그리고 200 mg/kg으로 투여한 경우의 소핵생성은 각각 3.7${\pm}$0.7, 4.3${\pm}$0.6, 12.8${\pm}$0.8 그리고 15.6${\pm}$1.1로써 농도증가에 비례적으로 증가하였으며 대조군에서는 1.4${\pm}$0.5의 소핵생성을 나타내었다. MNNG를 150 mg/kg과 메밀싹 추출물을 각각 10, 20, 40 그리고 80 mg/kg으로 동시에 투여한 경우 각각 23.4, 40.6, 56.3 그리고 73.4%의 소핵생성 억제효과를 나타내었다 . 메밀싹 용매 분획물 실험에서는 핵산, 클로로포름, 에틸 아세테이트, 부탄올 그리고 물 분획물이 시료농도 80 mg／kg의 투여군에서 양성대조군에 비해 각각 64.1, 67.9, 75.8, 74.2 및 63.3%의 소핵생성 억제율을 나타내었다. 따라서 메밀싹은 건강식품으로서의 개발가능성을 가진 매우 유용한 원료임을 알 수 있었고, 추후 이러한 생리활성을 나타내는 부분만을 분리, 정제하여 추가적인 검색 및 활용방안에 대하여 충분한 연구가 이루어져야 한다고 사료된다.

This study was carried out to determine the antioxidative and antigenotoxic effects of buckwheat (Fagopyrum esculentum Moench) sprout using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical donating method and micronucleus test. Buckwheat sprout were extracted with 70% ethanol and then further fractionated to n-hexane, chloroform, ethyl acetate (EtOAc), butanol and water. Among the five fractions, the EtOAc fraction showed the highest electron donating activity ($RC_{50}$ 26.1 ${\mu}g/mL$). The effects of buckwheat sprout extracts on the frequencies of micronucleated polychromatic erythrocytes (MNPCEs) induced by MNNG (N-methyl-N'-nitro-N-nitrosoguanidine) were investigated in the bone marrow. 10, 20, 40 and 80 mg/kg of each extract were administered to animals immediately after injection of MNNG and the exposure time was 36 hrs. Inhibition effects of buckwheat sprout ethanol extract were 23.4%, 40.6%, 56.3% and 73.4%, respectively. When the fraction of hexane, chloroform, ethyl acetate, butanol and water from 70% ethanol extract were treated with concentration of 80 mg/kg, the suppression rates of the MNPCE were 64.1, 67.9, 75.8, 74.2 and 63.3%, respectively.

키워드

참고문헌

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