Table 4.
Fermentation efficiency of A. succinogenes fed-batch cultures carried out using OFMSW hydrolysate
| Initial and consumed carbon sources (g/L)a | Nitrogen source (g/L) | MgCO3 (g/L) | Succinic acid (g/L) | Yield (g/g)a | Productivity (g/L/h) | By-product: succinic acid (g/g) |
|---|---|---|---|---|---|---|
| 50 (57.9) | 5 g/L CSL | 5 | 28.7 | 0.50 | 0.41 | 0.37 |
| 50 (68.4) | 5 g/L YE | 5 | 34.3 | 0.50 | 0.75 | 0.59 |
| 50 (55.1) | – | 5 | 31.1 | 0.56 | 0.62 | 0.30 |
| 50 (57.1) | – | 10 | 31.7 | 0.56 | 0.72 | 0.25 |
| 50 (58.4) | – | 20 | 34.8 | 0.60 | 0.79 | 0.25 |
aConsumed carbon source is presented in the brackets; succinic acid to sugars conversion yield has been calculated based on quantity (g) of succinic acid produced during fermentation and the quantity (g) of total sugars added in the bioreactor