S. Toda et Y. Shirataki, Comparison of antioxidative and chelating effects of daidzein and daidzin on protein oxidative modification by copper in vitro, BIOL TR EL, 79(1), 2001, pp. 83-89
Daidzein and its glycoside daidzin are isoflavones. Their antioxidative eff
ects were compared in vitro. Although both compounds inhibited protein oxid
ative modification by copper, the inhibitory effect of daidzein was stronge
r than that of daidzin. Because daidzein showed a greater affinity for Cu2, the antioxidant effect of these isoflavones may be dependent on their res
pective copper-chelating abilities.