| The content of ethyl alcohol in the used extractant % | Content amount of flavonoids in the excerpt, in terms of apigenin, ×103 % |
| 0 | 4.9 ± 0.1 |
| 10 | 5.4 ± 0.2 |
| 20 | 5.4 ± 0.2 |
| 30 | 5.4 ± 0.2 |
| 40 | 5.6 ± 0.1 |
| 50 | 5.6 ± 0.2 |
| 60 | 6.1 ± 0.1 |
| 70 | 5.8 ± 0.1 |
| 80 | 5.2 ± 0.2 |
| 90 | 4.0 ± 0.2 |
| 96 | 2.9 ± 0.1 |