Table 1. Quantification of the daidzin and daidzein using the HPLC (ppm)

Time (h) Daidzin Daidzein
Concentration Composition Concentration Composition
0 841.3±21.0 97.9% 17.8±2.6 2.1%
5 830.3±12.5 97.6% 20.6±1.1 2.4%
12 780.0±11.6 93.4% 55.6±5.6 6.6%
17 693.4±9.0 85.1% 121.2±7.1 14.9%
25 639.3±16.0 79.3% 167.3±7.5 20.7%
48 630.9±9.5 77.0% 188.2±8.5 23.0%
72 614.5±15.1 74.5% 210.3±13.7 25.5%