Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Quality Characteristics and Antioxidant Properties of Black and Yellow Soybeans

검은 콩 및 노란 콩의 품질 특성 및 콩 부위별 항산화 활성

  • Received : 2014.07.26
  • Accepted : 2014.09.23
  • Published : 2014.12.31
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Abstract

The objective of this study was to investigate the content of phenolic compounds and their contribution to antioxidant activity in the seed coats, dehulled and whole black and yellow soybeans. The total phenolic and total anthocyanin contents were analyzed. FRAP, DPPH and ABTS assays were carried out to determine the antioxidant activities. The 100-seed weight and color values were also analyzed. Black seed coats had significantly greater total phenolic and total anthocyanin contents as compared to whole beans, dehulled beans, and yellow seed coats. Moreover, black seed coats exhibited the highest antioxidant activity among the samples, regardless of the utilized method. The antioxidant activities determined in all assays positively correlated with the total phenolic ($0.980{\leq}r{\leq}0.991$) and anthocyanin contents ($0.990{\leq}r{\leq}0.997$) as well as among themselves ($0.992{\leq}r{\leq}0.996$). It is anticipated that the information generated from this study will help support the development of soybean products for improving health.

검은 콩 흑태, 서리태 및 노란 콩 백태를 대상으로 백립중, 색도 등 물리적 특성과 종피 제거 전과 후의 각 부분에 대한 항산화 성분 및 항산화 활성에 대해 비교 분석하였다. 백립중은 서리태가 39.1 g으로 가장 높게 나타났고 전체 종실에 대한 자엽의 무게 비는 백태가 94.4%로 가장 높았다. 콩 표면의 종피 색은 백태에서 그리고 자엽 표면에 대한 색은 흑태와 백태에서 L, a, b 값 모두 유의적으로 가장 높게 나타났으며 특히 서리태 자엽의 a 값은 -5.66으로 자엽 표면의 색이 녹색에 가까운 것을 알 수 있었다. 총 페놀 화합물은 서리태 종피에서 25.2 mg/g으로 가장 높게 나타났으며 총 안토시아닌 함량 또한 서리태 종피에서 6.4 mg/g으로 가장 높은 함량을 나타내었다. 항산화 활성은 측정 방법에 상관없이 서리태의 종피에서 가장 높게 나타났으며 반면, 콩 부분별로는 자엽에서 그리고 콩 종류별로는 백태에서 전반적으로 낮게 나타났다. 항산화 성분과 항산화 활성과의 상관 관계 분석결과에서는 모든 항목에서 상관계수 값은 0.9 이상으로 높은 양의 상관 관계(p<0.01)가 있는 것으로 나타났으며 특히, 총 안토시아닌 함량과 DPPH 활성과의 상관성이 가장 높은 것으로 나타났다(r=0.997). 따라서 검은 콩 및 노란 콩 각 부분에 대한 항산화 성분과 활성에 대한 이상의 연구 결과는 건강 증진을 위한 콩 제품 개발시 콩의 효율적인 사용을 위해 유용할 것으로 사료된다.

Keywords

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