Table 4 Fermentation performance of batch and repeated-batch cultures
From: Fungal fermentation on anaerobic digestate for lipid-based biofuel production
Culture | Batch (control) | Repeated-batch | ||
|---|---|---|---|---|
Initial batch | After 1st repeated-batch | After 2nd repeated-batch | ||
C/N ratio of the medium (mol/mol) | 3.07 ± 0.04 | 2.16 ± 0.06 | 2.16 ± 0.06 | 2.16 ± 0.06 |
Glucose consumed (g/L) | 12.51 ± 0.17 | 8.77 ± 0.26 | 17.31 ± 0.50 | 26.23 ± 0.45 |
Xylose consumed (g/L) | 6.47 ± 0.08 | 4.14 ± 1.17 | 9.06 ± 0.34 | 12.77 ± 0.50 |
Acetate consumed (g/L) | 2.51 ± 0.04 | 2.15 ± 0.11 | 4.42 ± 0.12 | 6.83 ± 0.08 |
Biomass concentration (g/L) | 8.98 ± 0.04 | 6.74 ± 0.39 | 11.11 ± 0.54 | 14.34 ± 0.99 |
Lipid concentration (g/L) | 1.50 ± 0.06 | 1.25 ± 0.06 | 2.17 ± 0.06 | 3.16 ± 0.08 |
Lipid content in biomass (g/g) | 0.17 ± 0.01 | 0.17 ± 0.01 | 0.20 ± 0.01 | 0.21 ± 0.00 |
Lipid yield (g/g)a | 0.07 ± 0.00 | 0.08 ± 0.00 | 0.07 ± 0.00 | 0.07 ± 0.00 |
Biomass yield (g/g)b | 0.42 ± 0.01 | 0.45 ± 0.04 | 0.36 ± 0.02 | 0.31 ± 0.01 |