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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Isoflavone Composition and Estrogenic Activity of Germinated Soybeans (Glycine max) according to Variety

품종별 발아 콩(Glycine max)의 아이소플라본 조성 및 In Vitro 에스트로겐 유사활성

  • Kim, Min Young (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Jang, Gwi Yeong (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Ji, Yeong Mi (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Kim, Kyung Mi (Department of Crop Science, Chungbuk National University) ;
  • Kim, Hongsik (National Academy of Agricultural Science, Rural Development Administration) ;
  • Lee, Junsoo (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Jeong, Heon Sang (Department of Food Science and Biotechnology, Chungbuk National University)
  • 김민영 (충북대학교 식품생명공학과) ;
  • 장귀영 (충북대학교 식품생명공학과) ;
  • 지영미 (충북대학교 식품생명공학과) ;
  • 김경미 (충북대학교 식물자원학과) ;
  • 김홍식 (농촌진흥청 국립농업과학원) ;
  • 이준수 (충북대학교 식품생명공학과) ;
  • 정헌상 (충북대학교 식품생명공학과)
  • Received : 2016.07.28
  • Accepted : 2016.09.09
  • Published : 2016.10.31
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Abstract

This study was performed to investigate the changes in isoflavone composition, estrogenic activity and antiestrogenic activity of soybean cultivars of different isoflavone content (Aga 8, Uram, Cheongja 3, and Dawon) with germination. Total isoflavone contents of Aga 8, Dawon and Cheongja 3 was increased from 2,671.74, 261.08 and 2,240.08 to 2,977.50, 966.13 and $2,354.11{\mu}g/g$, respectively after germination except for Uram cultivars, and highest contents of total isoflavone showed $2,977.50{\mu}g/g$ and $2,354.11{\mu}g/g$, respectively in Aga 8 and Cheongja 3 after germination. MTT cell proliferation assay using MCF-7 cells revealed that germinated soybean of Aga 8 and Cheonja 3 obtained not only contained a high content of isoflavone but also had estrogenic activity. Estrogenic activity of Aga 8 and Cheongja 3 soybean extracts increased from 116.21% and 101.60% to 135.34% and 121.05% after germination. These results suggest that germinated soybean of Aga 8 and Cheongja 3 might have a potential preventive effect on estrogen-deficient diseases.

본 연구에서는 아이소플라본 함량이 서로 다른 한국산 4 품종(아가 8호, 우람, 다원콩 및 청자 3호)의 콩에 대하여 발아에 따른 아이소플라본 조성 및 에스트로겐 유사활성의 변화를 살펴보았다. 아이소플라본 조성은 발아에 따라 총아이소플라본, glycosides 계열, acetyl glycoside 계열 및 비배당체는 증가하였지만, malonyl glycosides 계열은 감소하였다. 품종에 따라 발아 전에는 아가 8호> 청자3호> 우람> 다원 순으로 총아이소플라본 함량이 높게 나타났고, 발아 후에는 다원 품종이 우람 품종에 비해 높게 나타났다. 에스트로겐 유사활성은 아이소플라본 함량이 높은 아가 8호 및 청자 3호가 $25{\mu}g/mL$의 농도에서 발아 후 135.34 및 121.05%의 높은 세포 증식 효과를 보였다. 또한, 에스트로겐 유사활성이 높게 나타난 아가 8호 및 청자 3호의 발아콩 추출물은 에스트로겐과 병용 처리 시 낮은 세포생존률을 보여 항에스트로겐 유사활성을 보였다. 이러한 결과로부터 아이소플라본 함량이 높은 아가 8호 및 청자 3호에서 에스트로겐 유사활성이 높게 나타나 품종에 따른 영향을 크게 받는 것으로 나타났으며, 아이소플라본 함량과 에스트로겐 유사활성간의 높은 상관관계를 확인하였다.

Keywords

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