Table 2 Antiviral activity of the compounds from Bletilla striata in embryonated hen eggs
Compounds | Concentration (mmol/egg) | -log2 HA titer (mean ± SD) | Inhibition (%) |
|---|---|---|---|
1 | 0.08 | 4.60 ± 0.55** | 20.69 |
0.16 | 2.20 ± 0.45** | 62.07 | |
0.32 | 0.40 ± 0.55** | 93.10 | |
2 | 0.02 | 5.80 ± 0.84 | 0.00 |
0.04 | 3.00 ± 0.71** | 48.28 | |
0.08 | 1.20 ± 0.45** | 79.31 | |
3 | 0.02 | 6.20 ± 0.84 | 0.00 |
0.04 | 5.40 ± 0.55 | 6.90 | |
0.08 | 4.80 ± 0.45** | 17.24 | |
4 | 0.04 | 6.00 ± 0.71 | 0.00 |
0.08 | 3.80 ± 0.84** | 34.48 | |
0.16 | 0.00 ± 0.00** | 100.00 | |
5 | 0.02 | 5.80 ± 0.84 | 0.00 |
0.04 | 5.40 ± 0.55 | 6.90 | |
0.08 | 5.60 ± 0.55 | 3.45 | |
6 | 0.04 | 5.80 ± 0.84 | 0.00 |
0.08 | 3.80 ± 0.84** | 34.48 | |
0.16 | 0.00 ± 0.00** | 100.00 | |
7 | 0.02 | 6.80 ± 0.45 | 0.00 |
0.04 | 6.60 ± 0.55 | 0.00 | |
0.08 | 6.40 ± 0.55 | 0.00 | |
8 | 0.04 | 5.40 ± 0.55 | 6.90 |
0.08 | 2.20 ± 0.45** | 62.07 | |
0.16 | 0.40 ± 0.55** | 93.10 | |
9 | 0.04 | 6.00 ± 0.71 | 0.00 |
0.08 | 3.80 ± 0.84** | 34.48 | |
0.16 | 0.00 ± 0.00** | 100.00 | |
10 | 0.04 | 6.00 ± 0.71 | 0.00 |
0.08 | 3.20 ± 0.40** | 44.83 | |
0.16 | 0.60 ± 0.49** | 89.66 | |
11 | 0.02 | 6.40 ± 0.55 | 0.00 |
0.04 | 4.00 ± 1.00** | 31.03 | |
0.08 | 1.40 ± 0.55** | 75.86 | |
0.04 | 5.80 ± 0.84 | 0.00 | |
12 | 0.08 | 3.80 ± 0.84** | 34.48 |
0.16 | 0.60 ± 0.55** | 89.66 | |
Oseltamivir | 0.01 | 0.00 ± 0.00** | 100.00 |
|  | Virus control | 5.80 ± 0.84 | / |
|  | Norm-control | 0.00 ± 0.00 | / |