Table 2.
Strain characteristics of Y. lipolytica DSM 3286 and DSM 21175 tested under different pH conditions in bioreactor cultivations (n.d.—not detected).
| Strain name | pH | μ max (h−1) | DCW (g/L) | Yield Polyols (g/g) | Yield Citric Acid/Isocitric Acid (g/g) | Isocitric Acid (%) |
|---|---|---|---|---|---|---|
| DSM 3286 | 2.5 | 0.30 ± 0.05 | 17.5 ± 1.0 | 0.41 | 0.00 | n.d. |
| 3.0 | 0.35 ± 0.04 | 14.1 ± 0.9 | 0.43 | 0.02 | 14.0 | |
| 3.5 | 0.29 ± 0.04 | 14.7 ± 0.9 | 0.36 | 0.04 | 14.1 | |
| 4.5 | 0.35 ± 0.07 | 11.2 ± 2.6 | 0.20 | 0.34 | 8.2 | |
| 5.5 | 0.31 ± 0.01 | 11.7 ± 0.7 | 0.13 | 0.44 | 8.6 | |
| 6.5 | 0.35 ± 0.07 | 10.2 ± 1.8 | 0.09 | 0.42 | 8.6 | |
| 7.5 | 0.34 ± 0.03 | 14.9 ± 1.8 | 0.08 | 0.40 | 10.0 | |
| DSM 21175 | 2.5 | 0.43 ± 0.09 | 20.8 ± 0.4 | 0.26 | 0.01 | n.d. |
| 3.0 | 0.47 ± 0.01 | 20.9 ± 0.6 | 0.30 | 0.00 | n.d. | |
| 3.5 | 0.39 ± 0.04 | 20.1 ± 2.2 | 0.29 | 0.02 | 15.8 | |
| 4.5 | 0.45 ± 0.14 | 21.7 ± 0.3 | 0.30 | 0.04 | 17.5 | |
| 5.5 | 0.39 ± 0.05 | 22.4 ± 3.3 | 0.29 | 0.05 | 15.9 | |
| 6.5 | 0.47 ± 0.03 | 23.2 ± 1.3 | 0.26 | 0.09 | 24.5 | |
| 7.5 | 0.39 ± 0.07 | 22.3 ± 2.0 | 0.22 | 0.12 | 21.1 |