Table 1 Ethanol extract yields from roots of different Gentiana spp.
| Samples | Extract yield (%)a |
|---|---|
| G. scabra (GS) | 6.76 |
| G. davidii var. formosana (GDF) | 5.71 |
| G. arisanensis (GA) | 9.10 |
| G. scabrida var. punctulata (GSP) | 7.96 |
| Gentian dried root 1 (DR1) | 24.25 |
| Gentian dried root 2 (DR2) | 28.05 |