Table 3 Virus titration of medicinal herb extracts against influenza H1N1 virus A/NWS/33
Plants | Extract Solvents | Virus titration (Log TCID50a/25 μL) | ||||
|---|---|---|---|---|---|---|
Total dilution (−fold) | ||||||
Control | 100 | 50 | 10 | 1b | ||
Brassica juncea | Ethanol | 4.8 | 4.6 | 4.1** | 3.6** | 1.5** |
Water | 4.8 | 4.9 | 4.8 | 4.9 | 4.6 | |
Forsythia suspensa | Ethanol | 4.8 | 4.6 | 3.9** | 4.0** | 3.5** |
Water | 4.8 | 4.6 | 4.3** | 3.9** | 3.8** | |
Inula britannica | Ethanol | 4.8 | 4.5 | 4.1** | 2.5** | 0** |
Water | 4.8 | 4.9 | 4.9 | 4.6 | 3.9** | |