Table 1 Product formation during the growth of C. pasteurianum DSMZ 525 under iron excess (Fe+) and iron limitation (Fe−) conditions. Fermentations were performed in duplicates
| Â | Biomass | 1,3-PDO | BuOH | EtOH | Acetate | Butyrate | Lactate | Formate | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Fe+ | Fe− | Fe+ | Fe− | Fe+ | Fe− | Fe+ | Fe− | Fe+ | Fe− | Fe+ | Fe− | Fe+ | Fe− | Fe+ | Fe− | |
Final titer (g/L) | 5.1 ± 0.09 | 3.2 ± 0.01 | 9.4 ± 1.44 | 16.6 ± 2.26 | 12.3 ± 0.06 | 4.4 ± 0.70 | 1.0 ± 0.12 | 0.9 ± 0.60 | 0.8 ± 0.01 | 1.5 ± 0.02 | 1.7 ± 0.45 | 2.8 ± 0.13 | 0.1 ± 0.00 | 7.5 ± 2.58 | 0.5 ± 0.07 | 1.1 ± 0.11 |
Production rate (g/L*h) at exponent-ial growth phase | 0.39 ± 0.00 | 0.16 ± 0.03 | 0.66 ± 0.17 | 0.74 ± 0.02 | 0.53 ± 0.11 | 0.16 ± 0.04 | 0.06 ± 0.02 | 0.03 ± 0.003 | 0.04 ± 0.004 | 0.07 ± 0.03 | 0.14 ± 0.02 | 0.13 ± 0.01 | 0.007 ± 0.003 | 0.28 ± 0.02 | 0.03 ± 0.01 | 0.04 ± 0.02 |
| Â | Y S/X | Y P/X | ||||||||||||||
Y i/X (g/g BM) | 9.6 ± 0.3 | 13.9 ± 1.2 | 1.16 ± 0.09 | 4.40 ± 0.52 | 1.88 ± 0.25 | 0.97 ± 0.13 | 0.15 ± 0.06 | 0.17 ± 0.13 | 0.10 ± 0.01 | 0.39 ± 0.09 | 0.39 ± 0.08 | 0.80 ± 0.17 | 0.02 ± 0.00 | 1.64 ± 0.37 | 0.08 ± 0.02 | 0.25 ± 0.05 |