Table 3 Virucidal effect and virus yield reduction
From: In vitro antiviral activity of fifteen plant extracts against avian infectious bronchitis virus
No. | Plant extract | Concentrations of plant extracts equivalent to CC50 | PFU number (mean ± SD), log10 | PFU reduction rate, % | TCID50 (mean ± SD), log10 |
|---|---|---|---|---|---|
1. | S. montana | 1 | 0 | 100 | 0 |
0.5 | 0 | 100 | 0 | ||
0.25 | 0.97 ± 0.19 | 78.0 | 0.75 ± 0.64 a | ||
0.125 | 1.03 ± 0.11 | 76.6 | 1.83 ± 0.31 c x | ||
5. | O. vulgare | 1 | 0 | 100 | 0 |
0.5 | 0 | 100 | 0 | ||
0.25 | 1.08 ± 0.00 | 75.4 | 1.00 ± 0.94 a | ||
0.125 | 1.40 ± 0.32 | 68.2 | 2.48 ± 0.23 d x | ||
6. | M. piperita | 1 | 0 | 100 | 0 |
0.5 | 0 | 100 | 0 | ||
0.25 | 0 | 100 | 0a | ||
0.125 | 1.48 ± 0.05 x | 66.4 | 2.63 ± 0.13 d x | ||
8. | M. officinalis | 1 | 0 | 100 | 0 |
0.5 | 0 | 100 | 0 | ||
0.25 | 0.15 ± 0.21 | 96.6 | 0.56 ± 0.44 a | ||
0.125 | 1.72 ± 0.01 x | 60.9 | 3.38 ± 0.21 e x | ||
11. | T. vulgaris | 1 | 0 | 100 | 0 |
0.5 | 0 | 100 | 0 | ||
0.25 | 0 | 100 | 0 | ||
0.125 | 1.70 ± 0.01 x | 61.3 | 3.25 ± 0.22 ex | ||
12. | H. officinalis | 1 | 0 | 100 | 0 |
0.5 | 0 | 100 | 0 | ||
0.25 | 1.33 ± 0.01 | 69.8 | 3.00 ± 0.29 b | ||
0.125 | 2.00 ± 0.03 x | 54.5 | 3.35 ± 0.29 e | ||
15. | S. officinalis | 1 | 0 | 100 | 0 |
0.5 | 0 | 100 | 0 | ||
0.25 | 2.00 ± 0.00 | 54.5 | 3.25 ± 0.25 b | ||
0.125 | 2.19 ± 0.03 x | 50.2 | 3.45 ± 0.21 e | ||
16. | D. canadense | 1 | 0 | 100 | 0 |
0.5 | 0 | 100 | 0 | ||
0.25 | 0 | 100 | 0a | ||
0.125 | 1.70 ± 0.01 x | 61.3 | 2.75 ± 0.16 d | ||
IBV (control) | – | 4.40 ± 0.09 | – | 5.00 ± 0.19 |