Table 2 Effects of heating time and pH on the flocculating activity of the purified bioflocculant (n = 3, mean ± SD)
Heating time (min) | FA ± SD (U/mL) | pH | FA ± SD (U/mL) |
|---|---|---|---|
0 | 1313.1 ± 5.8 | 3 | 938.9 ± 27.8 |
15 | 1289.2 ± 16.0 | 5 | 1119.4 ± 25.6 |
30 | 1080.2 ± 35.5 | 7 | 1251.4 ± 36.5 |
45 | 926.1 ± 16.6 | 9 | 1301.8 ± 14.7 |
60 | 858.7 ± 19.4 | 11 | 1014.3 ± 35.6 |
|  |  | 13 | 695.9 ± 69.4 |