검은콩과 검은콩 발효제품을 이용하여 천연보존료나 건강 기능성식품을 개발하기 위하여 검은콩 중 약콩과 서리태를 선정하여 청국장을 제조한 후, 검은콩과 청국장을 물과 에탄올로 추출하여 폴리페놀 함량과 항산화능을 측정하였다. 약콩과 약콩 청국장에 대한 물추출물의 폴리페놀 함량은 각각 316.23 mg/100 g, 896.01 mg/100 g이었으며, 서리태와 서리태 청국장에 대한 물추출물의 폴리페놀 함량은 각각 304.28 mg/100 g, 875.2

We sought to develop natural preservatives or functional health foods from black soybeans (Yakkong, Seoritae and Chungkukjang). These materials were extracted with distilled water or 70% (v/v) ethanol, and the extracts sanalyzed for polyphenol content and tested for antioxidative and fibrilytic activities. The polyphenol contents of water extracts from Yakkong and Yakkong Chungkukjang was 316.23 mg/100 g, 896.01 mg/100 g, respectively, whereas those from Seoritae and Seoritae Chungkukjang were 304.28 mg/100 g and 875.23 mg/100 g. The polyphenol contents of water extracts from Chungkukjang were 2.8-fold higher than those from black soybean. The electron-donating abilities (EDAs) and superoxide dismutase (SOD)-like activities of water extracts from black soybean Chungkukjang were higher than those of water extracts from black soybean, but both extracts had fibrinolytic activity, the highest activity was present in water extracts of Yakkong Chungkukjang. The polyphenol contents, and antioxidative and fibrinolytic activities of extracts from black soybean Chungkukjang were higher than those of other black soybean extracts from black soybeans. These results indicate that black soybean Chungkukjang can be used for development of a health food or as a natural antioxidant.

• 주은영
• 박찬성