Table 1.
HPLC analysis of phenylpropanoids in the different flowering stages of Agastache rugosa
| Compounds | Stage I | Stage II | Stage III |
|---|---|---|---|
| 4-Hydroxybenzoic acid | 0.48 ± 0.02a | 0.26 ± 0.02c | 0.32 ± 0.04b |
| Chlorogenic acid | 1.78 ± 0.03a | 1.16 ± 0.02c | 1.41 ± 0.04b |
| Caffeic acid | 0.09 ± 0.00b | 0.12 ± 0.00a | 0.07 ± 0.00c |
| trans-Cinnamic acid | 0.11 ± 0.01a | 0.07 ± 0.00b | 0.01 ± 0.00c |
| Quercetin | 4.53 ± 0.15a | 1.70 ± 0.05b | 1.51 ± 0.09b |
| (-)-Epicatechin | 0.22 ± 0.02c | 0.72 ± 0.02a | 0.67 ± 0.03b |
| Rutin | 0.00 ± 0.00c | 0.40 ± 0.01b | 0.49 ± 0.00a |
| Kaempferol | 0.14 ± 0.01a | 0.12 ± 0.01a | 0.14 ± 0.01a |
| Tilianin | 11.47 ± 0.68b | 12.52 ± 0.46a | 7.13 ± 0.20c |
| Acacetin | 2.45 ± 0.01b | 3.02 ± 0.08a | 0.79 ± 0.05c |
| Rosmarinic acid | 2.17 ± 0.11c | 2.67 ± 0.08b | 5.24 ± 0.22a |
| Total | 23.45 ± 0.90a | 22.78 ± 0.42a | 17.70 ± 0.36b |
Mean values with a different letter (a, b, and c, respectively) were significantly different (p < 0.05, ANOVA, DMRT)