Table 1.
Intermediate stability studies of S. baicalensis radix lyophilized extract.
| Compound | Residual Flavones Content (%) | |||||
|---|---|---|---|---|---|---|
| 1 Month | 2 Months | 3 Months | 4 Months | 5 Months | 6 Months | |
| baicalin | 93.03 ± 0.58 a | 91.23 ± 0.25 a | 91.25 ± 1.49 a | 90.07 ± 7.19 a | 90.76 ± 1.27 a | 90.95 ± 0.03 a |
| baicalein | 95.59 ± 0.24 a | 93.94 ± 0.55 b | 93.11 ± 0.55 b | 93.68 ± 0.96 b | 92.55 ± 0.07 b | 92.88 ± 1.02 b |
| wogonin | 92.34 ± 2.82 a | 92.26 ± 0.60 a | 92.60 ± 3.59 a | 92.78 ± 1.44 a | 91.49 ± 1.04 a | 91.76 ± 0.21 a |
The values are presented as the mean ± SD (n = 3). Mean values with the same letter are not significantly different at p < 0.05 using Duncan’s multiple range test. “a” of the alphabet stands for the highest values, “b” stands for the statistically significant decreasing values.