Table 2.
Puerarin yield of kudzu extract (batch no.: C11)
| Test nr. | Peak area | Puerarin concentration (µg/ml) | Puerarin yield (g/kg kudzu extract) | Mean puerarin yield (g/kg ± SEM) |
|---|---|---|---|---|
| 1 | 2444504 | 31.51 | 147.8 | 148.1 ± 1.380 (14.8%) |
| 2 | 2431259 | 31.34 | 147.0 | |
| 3 | 2446196 | 31.53 | 147.9 | |
| 4 | 2415641 | 31.14 | 146.1 | |
| 5 | 2471267 | 31.85 | 149.4 | |
| 6 | 2483781 | 32.01 | 150.2 |
Y = C × V × 1000/(M × 1000 × 1000). Y: puerarin yield, unit: g/kg kudzu extract. C: puerarin concentration determined by high performance liquid chromatography (HPLC), unit: μg/mL. V: sample volume, unit: mL. M: sample mass, unit: g.