| 硝酸铵/时间(d) | OD值 | 细胞密度(104个/ml) |
| 1 | 0.395 | 175 |
| 4 | 0.879 | 236 |
| 7 | 0.902 | 443 |
| 10 | 1.300 | 689 |
| 13 | 1.116 | 635 |
| 16 | 1.144 | 906 |
| 19 | 1.178 | 1136 |
| 22 | 1.153 | 122 4 |
| 25 | 1.053 | 416 |
| 28 | 0.828 | 448 |