Table 5 Performance based on biomass concentration, lipid accumulation, and CO 2 fixation of salinity-gradient culturing of Chlamydomonas sp. JSC4 with stepwise addition of sea salt at different increments
Sea salt addition (% d-1) | Cultivation time under nitrogen depletion (days) | Biomass concentration (g L-1) | Lipid content (%) | Lipid productivity (mg L-1d-1) | CO2fixation rate (mg L-1d-1) |
|---|---|---|---|---|---|
0.0 (batch) | 0 | 1.426 ± 0.008 | 15.8 ± 0.1 | 111 ± 0 | 1319 ± 6 |
3 | 2.232 ± 0.007 | 41.9 ± 1.8 | 159 ± 8 | 731 ± 3 | |
5 | 2.467 ± 0.064 | 49.8 ± 2.3 | 152 ± 11 | 561 ± 16 | |
0.5 | 0 | 1.471 ± 0.010 | 15.3 ± 0.3 | 101 ± 3 | 1243 ± 9 |
3 | 2.129 ± 0.004 | 59.4 ± 0.7 | 223 ± 2 | 706 ± 1 | |
5 | 2.180 ± 0.042 | 63.7 ± 0.8 | 175 ± 3 | 515 ± 3 | |
1.0 | 0 | 1.445 ± 0.021 | 15.7 ± 0.6 | 102 ± 5 | 1219 ± 19 |
3 | 2.044 ± 0.015 | 60.2 ± 2.5 | 217 ± 7 | 677 ± 5 | |
5 | 2.082 ± 0.079 | 64.9 ± 2.7 | 170 ± 14 | 491 ± 20 | |
1.5 | 0 | 1.436 ± 0.007 | 15.5 ± 0.6 | 100 ± 3 | 1211 ± 6 |
3 | 2.009 ± 0.001 | 53.7 ± 2.0 | 190 ± 7 | 665 ± 0 | |
|  | 5 | 2.044 ± 0.090 | 59.4 ± 0.3 | 152 ± 6 | 482 ± 22 |