국내 콩 유전자원의 Isoflavone 함량 변이

Isoflavone in soybean is known to have the important physiological functions such as antioxidative, estrogenic, and anti-tumor activities. Therefore, isoflavone content is considered as important aspect of soybean quality. The objectives of this study are to determine the isoflavone contents of soybean germplasms including major cultivars in Korea, and to provide the basic information of isoflavone for development soybean cultivar containing high isoflavone content. Among 43 Korean major cultivated soybean samples, the total isoflavone contents were varied from 277.0 ㎍/g to 2, 002.0 ㎍/g, and the average total isoflavone content was 1, 017.3±390.0 ㎍/g. Total isoflavone content of Seokryangputkong (2, 002 ㎍/g) was the highest among those of the other cultivated soybeans. On the other side, Hwangkeumkong (277 ㎍/g) contained lower isoflavone than other cultivars. The total isoflavone content of vegetable use or early maturity soybean cultivar (1, 438± 493.7 ㎍/g) showed more higher total isoflavone content than others. The daidzein, glycitein, genistein and total isoflavone contents of 648 soybean germplasms collected in Korea, were ranged 16.9~2, 019.8 ㎍/g, 0~294.9 ㎍/g, 38.5~1, 337.7 ㎍/g, and 82.6~3, 479.2 ㎍/g, respectively, and total isoflavone content of IT 180001 line (3, 479.2 ㎍/g) was the highest among those of other soybean germ- plasm lines.