TABLE K.40
Extraction of Kava Lactones from Roots of P. Methysticum with Different Solvents1
| Extract | Percent Kava Lactones in Dried Extract |
|---|---|
| Acetone extract (standardized method) | 100(0.001) |
| 96 percent ethanol extract (standardized method) | 100(0.001) |
| 25 percent ethanol (traditional method) | 15(0.02) |
| Water (traditional method) | 2.97(0.03) |
1 Data presented as means (and standard deviation) for 10 samples in each solvent.
Source: Adapted from Whitton et al., Phytochemistry, 64:673–679, 2003. With permission.