Table 6.
Effect of liquid volume on four indices of biosurfactant production from strain 3B-2.
| Broth content (mL) | Biomass (OD600) | Protein concentration (g/L) | Surface tension (mN/m) | Diameter of clear zone (cm) | Overall weight |
|---|---|---|---|---|---|
| 50 | 0.52 | 2.83 | 45.05 | 4.65 | 0.1040 |
| 75 | 0.50 | 2.47 | 44.04 | 4.50 | 0.1400 |
| 100 | 0.48 | 3.28 | 44.15 | 6.10 | 0.3870 |
| 125 | 0.40 | 3.37 | 42.89 | 5.75 | 0.3690 |
| λmax | 4.1341 | 4.1519 | 4.1582 | 4.1263 | 4.14094 |
| CI | 0.0447 | 0.0506 | 0.0527 | 0.0421 | 0.04698 |
| RI | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 |
| CR | 0.0497 | 0.0563 | 0.0586 | 0.0468 | 0.0522 |
λmax = 4.0458, CI = 0.0153, RI = 0.9, CR = 0.017 (λmax: the maximal eigen value, CI: the consistency index, RI: the random index, CR: the consistency ratio).