Treatment | Concentration (μg/ml) | Absorbance at 560 nm | % Inhibition |
---|---|---|---|
Ink extract | 50 | 0.568 | 10.7 |
 | 100 | 0.481 | 12.06 |
 | 250 | 0.396 | 32.6 |
 | 500 | 0.252 | 57.7 |
 | 1000 | 0.148 | 84.1 |
Positive control (Aspirin) | 50 | 0.545 | 14.3 |
 | 100 | 0.329 | 48.2 |
 | 250 | 0.213 | 66.5 |
 | 500 | 0.201 | 68.3 |
 | 1000 | 0.091 | 85.6 |
Negative control (NaCl) | – | 0.636 | – |