Table 1.
Inhibition of C. violaceum (CV12472) pigments by different fractions of Mangifera indica.
| Fractions | Concentration (μg/ml) | Zone of inhibition (mm) | ||
|---|---|---|---|---|
| Total inhibition (r1) | Growth inhibition (r2) | Pigment inhibition (r1–r2) | ||
| Ethyl acetate | 225 | – | – | – |
| 450 | – | – | – | |
| 900 | – | – | – | |
| 1800 | 5 | – | 5 | |
| Acetone | 100 | – | – | – |
| 200 | – | – | – | |
| 400 | 18 | 15 | 3 | |
| 800 | 21 | 16 | 5 | |
| Methanol | 200 | – | – | – |
| 400 | 15 | – | 15 | |
| 800 | 21 | 2 | 19 | |
| 1600 | 25 | 8 | 17 | |
Data are the mean value of three replicate. Values are round off to nearest whole number. Petroleum ether and benzene fractions do not show any activity; –, No activity. Total inhibition = total zone of pigment inhibition including growth inhibition, if any.