Table 1.
Amounts of the five marker analytes in P. pubescens leaves samples (n = 3).
| Analyte | Batch no. | |||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||
| Mean (mg/g) ± SD a (× 10−1) | RSD b (%) | Mean (mg/g) ± SD (× 10−1) | RSD (%) | Mean (mg/g) ± SD (× 10−1) | RSD (%) | |
| Chlorogenic acid | 1.71 ± 0.08 | 0.44 | 1.85 ± 0.16 | 0.84 | 1.78 ± 0.17 | 0.95 |
| Isoorientin | 10.94 ± 0.18 | 0.16 | 11.63 ± 0.23 | 0.20 | 11.29 ± 0.30 | 0.27 |
| Orientin | 3.06 ± 0.03 | 0.09 | 3.25 ± 0.09 | 0.29 | 3.15 ± 0.02 | 0.07 |
| Isovitexin | 4.36 ± 0.15 | 0.34 | 4.65 ± 0.06 | 0.12 | 4.51 ± 0.09 | 0.20 |
| 4-Hydroxycinnamic acid | 2.13 ± 0.04 | 0.17 | 2.27 ± 0.07 | 0.30 | 2.20 ± 0.10 | 0.44 |
a SD means standard deviation. b RSD means relative standard deviation and presented as SD/Mean × 100.