| 硝酸钠/时间(d) | OD值 | 细胞密度(104个/ml) |
| 1 | 0.524 | 272 |
| 4 | 0.913 | 512 |
| 7 | 1.189 | 842 |
| 10 | 1.675 | 1364 |
| 13 | 1.494 | 1224 |
| 16 | 1.720 | 1690 |
| 19 | 1.774 | 1704 |
| 22 | 1.864 | 1952 |
| 25 | 1.971 | 2272 |
| 28 | 2.050 | 2464 |