Extraction of Isoflavones from Soybean Hypocotyl Using Aqueous Ethanol
2004
Choi, Y.B. (Chungkang College of Cultural Industries, Icheon, Republic of Korea) | Rhee, J.S. (Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea) | Lee, Y.B. (Dr. Chung's Food Co., Ltd, Cheongju, Republic of Korea) | Nam, S.Y. (Chungbuk National University, Cheongju, Republic of Korea) | Kim, K.S. (Yongin University, Yongin, Republic of Korea), E-mail: kss@yongin.ac.kr
Isoflavones were extracted from soybean hypocotyl using aqueous alcohols with different water contents. Malonylglycosides accounted for more than 70% of total isoflavones, followed by glycosides. Soybean hypocotyl contained 6-7 times more isoflavones than corresponding soybean cotyledon, making soybean hypocotyl ideal source for isoflavone production. Most suitable solvent for extracting isoflavones from soybean hypocotyls was 40-60% aqueous ethanol.
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