Table-3.
The results are shown as log10 TCID50/ml (mean±SE) of Newcastle disease virus inactivating activity by the mean of reaction in 1%, 5%, and 10% fresh charcoal ash and slaked lime solution in the absence or presence of organic materials.
| Conditions | Fresh charcoal ash | Slaked lime | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absence of organic materials | Presence of organic materialsa | Absence of organic materials | Presence of organic materials | |||||||||
| 1%b | 5% | 10% | 1% | 5% | 10% | 1% | 5% | 10% | 1% | 5% | 10% | |
| tpcc | 8.08±0.38 | 8.17±0.29 | 8.08±0.38 | 8.08±0.38 | 8.08±0.38 | 8.08±0.38 | 8.00±1.09 | 8.00±1.09 | 8.00±1.09 | 8.00±1.09 | 8.00±1.09 | 8.00±1.09 |
| 0 sd | 7.83±0.14 | 7.92±0.29 | 7.67±0.76 | 7.83±0.88 | 8.08±0.52 | 8.00±0.50 | 7.58±0.95 | 7.67±1.01 | 7.75±1.32 | 7.83±0.95 | 7.58±1.01 | 7.83±0.95 |
| 1 min | NT | NT | NT | NT | NT | NT | 7.00±0.50 | 6.83±0.38 | 6.92±0.14 | NT | NT | NT |
| 3 min | NT | NT | 5.25±0.66 | NT | NT | 6.25±0.43 | 5.08±0.38 | 4.75±0.25 | 4.92±0.38 | 5.92±0.76 | 5.92±0.72 | 5.58±0.76 |
| 5 min | NT | NT | 4.67±0.29* | NT | NT | 5.17±0.14 | 4.33±0.52* | 4.17±0.63* | 4.25±1.09* | 5.33±0.76 | 4.42±1.04 | 4.92±0.58 |
| 10 min | NT | NT | 4.33±0.29* | NT | NT | 4.58±0.14* | NT | NT | NT | 3.92±0.80* | 4.00±0.90* | 3.83±0.95* |
| 30 min | 7.17±0.52 | 6.50±1.39 | NT | 8.17±0.29 | 7.50±0.66 | NT | NT | NT | NT | NT | NT | NT |
| 1 h | 7.25±0.90 | 5.08±0.58 | NT | 7.58±0.38 | 7.00±0.87 | NT | NT | NT | NT | NT | NT | NT |
| 2 h | 7.17±0.95 | 3.38±1.15* | NT | 7.33±0.72 | 6.92±0.76 | NT | NT | NT | NT | NT | NT | NT |
Fetal bovine serum was added to fresh charcoal ash and slaked lime solution as 5% organic materials of total volume.
Concentration of fresh charcoal ash and slaked lime solution (%w/v).
The titer converted into an index in log10 of virus control.
Added 1M Tris-HCl before virus. eThe titer converted into an index in log10 of the recovered virus after indicated time of treatment such as 5 sec, 30 sec, 1 min, 5 min, 10 min, 30 min, 1 h, 2 h, 3 h, and 6 h. fNT=Not tested.
Inactivation effective when RF was ≥3