Table 1.
Process performance of Rarab, Rgluc and Rgluc+arab.
| Feed concentration (mM) | Glucose utilization (%) | Arabinose utilization (%) | Hydrogen yield (molH2 mol substrate consumed -1) |
Percentage of H2 produced from the theoretical yield (%) |
Hydrogen production rate (LH2 L-1d-1) |
COD balance (%)* |
Reference | |
|---|---|---|---|---|---|---|---|---|
|
Glucose reactor (Rgluc) |
8.3 | 100 | na | 0.34 ± 0.05 | 8 | 0.32 ± .018 | 96 | This study |
| 13.8 | 100 | na | 0.80 ± 0.03 | 20 | 1.15 ± 0.04 | 94 | ||
| 27.7 | 100 | na | 0.75 ± 0.07 | 19 | 2.10 ± 0.06 | 99 | ||
|
Arabinose reactor (Rarab) |
10.0 | na | 100 | 0.23 ± 0.01 | 7 | 0.24 ± 0.01 | 113 | This study |
| 16.6 | na | 99 | 0.77 ± 0.02 | 23 | 1.36 ± 0.04 | 97 | ||
| 33.3 | na | 79 | 1.10 ± 0.01 | 33 | 3.26 ± 0.16 | 112 | ||
| Glucose + Arabinose Reactor (Rgluc+arab) | 13.8+16.6 | 100 | 75 | 0.77 ± 0.05 | --- | 2.36 ± 0.14 | 109 | [6] |
*Assuming 15% of COD for cell growth.