Concentration (ppm) | Mean activity (U/mL) ± SD | Mean decolorization rate (%) ± SD |
---|---|---|
5 | 43.93a ± 17.95 | 90.5a ± 3.55 |
10 | 39.13ab ± 17.19 | 85.42ab ± 9.2 |
15 | 35.73ab ± 14.76 | 81.08b ± 8.32 |
20 | 31.6ab ± 14.12 | 70.58c ± 6.87 |
25 | 25.62b ± 14.85 | 61.25d ± 6.18 |