Table 3 Organic acid distribution for bioreactor cultivations based on the sampling points summarized in Table 2
Fermentation No. | Organic acid distribution [%]a | ||||||
|---|---|---|---|---|---|---|---|
Malate | Succinate | Fumarate | Pyruvate | α-Ketoglutarate | Oxalate | Citrate | |
I | 47.0 ± 1.7 | 39.7 ± 2.4 | 5.3 ± 0.3 | 3.4 ± 0.7 | 0.3 ± 0.0 | 3.3 ± 0.1 | 1.1 ± 0.2 |
II | 47.4 ± 0.6 | 40.7 ± 0.1 | 5.4 ± 0.1 | 2.3 ± 0.5 | 0.3 ± 0.0 | 3.0 ± 0.1 | 0.9 ± 0.0 |
III | 51.7 ± 0.8 | 42.1 ± 0.5 | 3.8 ± 0.1 | 1.2 ± 0.2 | 0.2 ± 0.0 | 0.1 ± 0.0 | 1.0 ± 0.0 |
IV | 51.0 ± 0.3 | 42.5 ± 0.4 | 4.2 ± 0.4 | 1.3 ± 0.0 | 0.1 ± 0.0 | 0.6 ± 0.2 | 0.3 ± 0.2 |
V | 51.6 ± 0.6 | 42.0 ± 0.5 | 4.3 ± 0.0 | 1.5 ± 0.1 | 0.0 ± 0.0 | 0.6 ± 0.1 | 0.0 ± 0.0 |
VI | 54.5 ± 0.1 | 40.2 ± 0.2 | 3.3 ± 0.2 | 0.6 ± 0.1 | 0.2 ± 0.0 | 0.9 ± 0.2 | 0.5 ± 0.1 |
VII | 50.2 ± 2.7 | 43.1 ± 2.8 | 2.9 ± 0.2 | 1.6 ± 0.1 | 0.2 ± 0.0 | 0.8 ± 0.6 | 1.1 ± 0.1 |