Table 1 Effect of various parameters on antifungal activity of culture supernatant against A. solani
Treatment | Streptomyces sp. SP5 | |
|---|---|---|
Zone of inhibition (mm) against A. solani | % Residual activity | |
Control (Untreated) | 25 ± 0.0 | 100 |
Temperature treatment | ||
 37 °C, 1 h | 25.0 ± 0.2 | 100 |
 50 °C, 1 h | 23.0 ± 0.4 | 92 |
 70 °C, 1 h | 20.0 ± 1.0 | 80 |
 100 °C, 1 h | 13.0 ± 0.3 | 52 |
 121 °C, 45 min | 8.0 ± 0.1 | 32 |
 -20 °C, 1 h | 25.0 ± 0.0 | 100 |
pH tolerance | ||
 pH 2 | 22.0 ± 0.3 | 88 |
 pH 14 | 23.0 ± 0.1 | 92 |
Photostability | ||
 Sunlight, 1 h | 25.0 ± 0.3 | 100 |
 UV light, 1 h | 25.0 ± 0.1 | 100 |