Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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Study on the Antioxidant Activity of Soybean Products Extracts for Application of Animal Products

축산제품에 응용하기 위한 콩제품 추출물의 항산화 능력에 관한 연구

  • 이치호 (건국대학교 축산대학 축산가공학과) ;
  • 문성용 (건국대학교 축산대학 축산가공학과) ;
  • 이중칠 (건국대학교 축산대학 축산가공학과) ;
  • 이지영 (건국대학교 축산대학 축산가공학과)
  • Published : 2004.12.01
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Abstract

This study was performed to investigate the antioxidative activity of soybean products extracts using 1, 1-diphenyl-2-picrylhydrazyl (DPPH) and thiobarbituric acid (TBA) method for application of animal products. All three extracts (natto, soybean paste, soybean milk extract) were found to have an ability to donate hydrogen to DPPH. Especially, natto and soybean paste extract were more effective than that of soybean milk on the antioxidative activities. Natto and soybean paste extract were stronger than butylhydroxy toluene (BHT), butyl hydroxyl anisole (BHA) (5${\times}$10$^{-4}$ M) and ascorbic acid (5.7${\times}$10$^{-3}$ M) previously well known as antioxidants. These extracts also showed a synergistic effect. TBA values of natto (45.8％) and soybean paste extract (45.2％) were stronger than that of soybean milk extract (33.6％). These results suggest that soybean product extracts have antioxidative activities and synergistic effects.

본 연구는 콩 제품 추출물의 항산화 활성을 DPPH 수소 공여 능으로 실험하고, 기존의 항산화제와의 상승효과 및 TBA radical scavenging activity를 실험하였고 그 결과는 다음과 같다. 콩 제품 추출물은 DPPH와 반응하여 시간이 경과함에 따라 감소하고, 시판 항산화제인 ascorbic acid는 반응 초기에 완료되는 결과를 보이는 반면 BHT와 BHA는 지속적으로 감소되는 것을 확인할 수 있었다. 또한 콩 발효식품인 된장과 청국장 추출물이 비 발효식품인 두유 추출물에 비하여 감소폭이 다소 크게 차이가 나타났다. 콩제품 추출물과 시판 항산 화제의 상승효과를 조사한 결과 모든 시험 구에서 반응시간이 경과함에 따라 감소폭이 증가하여 상승효과가 나타났으며 발효 식품인 된장과 청국장이 비 발효 식품인 두유에 비하여 시판 항산화제와의 상승효과를 더욱 강하게 나타내었다. 콩 제품 추출물의 TBA 측정을 조사한 결과, 청국장 추출물의 억제율은 45.8％, 된장추출물의 억제율은 45.2％로 나타났고, 두유 추출물의 억제율은 이보다 약 12％ 낮은 33.6％로 나타났다. 따라서 이들 추출물 중 두유 추출물은 기존의 이 소플라본이 생체에 미치는 긍정적인 효과와 함께 이들 항산화제 기능을 축산식품에 응용 가능한 것으로 사료된다.

Keywords

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