Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Antioxidant and Fibrinolytic Activities of Extracts from Soybean and Chungkukjang (Fermented Soybean Paste)

대두와 청국장 추출물의 항산화능과 혈전용해능

  • Joo, Eun-Young (Department of Herbal Biotechnology, Daegu Haany University) ;
  • Park, Chan-Sung (Faculty of Herbal Food Cuisine & Nutrition, Daegu Haany University)
  • 주은영 (대구한의대학교 한약자원학과) ;
  • 박찬성 (대구한의대학교 한방식품조리영양학부)
  • Received : 2011.05.20
  • Accepted : 2011.11.11
  • Published : 2011.12.30
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Abstract

To develop natural preservatives or functional health foods from soybeans (Baektae and Taekwang), the antioxidant and fibrinoytic activities of the water and 70% (v/v) ethanol extract of soybeans and fermented soybean paste (Chungkukjang) were examined. The polyphenol contents of water extracts from Baektae and Baektae Chungkukjang were 189.25 mg/100 g and 814.58 mg/100 g, respectively, whereas those from Taekwang and Taekwang Chungkukjang were 210.23 mg/100 g and 834.23 mg/100 g. The polyphenol contents of the water extracts from Chungkukjang was 4.0~4.3-fold higher than those from soybean. The electron-donating abilities (EDAs) and superoxide dismutase-(SOD)-like activities of the water and ethanol extracts from Chungkukjang were higher than those of the extracts from soybean. Both extracts were found to have had fibrinolytic activity, and the highest activity was present in the water extracts of Baektae Chungkukjang. The polyphenol contents and antioxidative and fibrinolytic activities of the extracts from Chungkukjang were higher than those of the other soybean extracts. These results indicate that Chungkukjang can be used as a material for health foods or natural antioxidants.

대두를 이용하여 천연보존료나 건강 기능성식품을 개발하기 위하여 백태와 태광으로 청국장을 제조하여 물과 70% 에탄올로 추출한 후, 폴리페놀 함량, 항산화능 및 혈전용해능을 측정하였다. 백태와 백태 청국장에 대한 물추출물의 폴리페놀 함량은 각각 189.25 mg/100g, 814.58 mg/100g 이었으며 태광과 태광 청국장에 대한 물추출물의 폴리페놀 함량은 각각 210.23 mg/100g, 834.23 mg/100g으로 대두 청국장 물추출물의 폴리페놀 함량은 각각의 대두에 비하여 4~4.3배 증가하였다. 대두로 제조한 청국장 물추출물의 전자공여능과 SOD 유사활성은 원료의 콩에 비하여 높은 활성을 나타내었다. 대두와 대두 청국장의 물과 에탄올추출물은 모두 혈전용해능을 나타내었으며 백태 청국장의 물추출물이 가장 우수한 혈전용해능을 나타내었다. 이러한 결과를 종합해 볼 때, 대두에 비하여 대두로 제조한 청국장 추출물의 폴리페놀 함량이 유의적으로 높았으며 청국장의 제조와 함께 항산화능과 혈전용해능도 증가하는 것으로 분석되었으므로 청국장은 건강식품의 개발이나 천연항산화제로서의 이용가능성이 높을 것으로 판단된다.

Keywords

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