Carbon source | Synthetic VFA mixture | VFA from anaerobic fermenter | ||
---|---|---|---|---|
(28 °C, 180 rpm, initial pH 6.0) | (28 °C, 180 rpm, initial pH 6.0) | (38 °C, 180 rpm, initial pH 6.0) | (28 °C, 180 rpm, pH uncontrolled) | |
DCW (g/L) | 2.152 ± 0.102 | 2.029 ± 0.150 | 1.850 ± 0.177 | 1.667 ± 0.143 |
Lipid conc. (g/L) | 0.682 ± 0.011 | 0.370 ± 0.027 | 0.334 ± 0.021 | 0.272 ± 0.035 |
Lipid content (wt %) | 31.69 ± 0.73 | 18.23 ± 1.12 | 18.09 ± 0.89 | 16.33 ± 1.07 |
YX/S | 0.861 ± 0.041 | 0.812 ± 0.060 | 0.740 ± 0.071 | 0.667 ± 0.057 |
YL/S | 0.273 ± 0.004 | 0.148 ± 0.010 | 0.133 ± 0.008 | 0.108 ± 0.014 |
Lipid productivity g/(L days) | 0.23 ± 0.01 | 0.12 ± 0.02 | 0.11 ± 0.02 | 0.07 ± 0.03 |