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Table 4 Biomass concentration, lipid accumulation, and CO 2 fixation of Chlamydomonas sp. JSC4 after transfer to high salinity conditions of 3, 5, and 7% sea salt for three to seven days

From: Optimizing biodiesel production in marine Chlamydomonassp. JSC4 through metabolic profiling and an innovative salinity-gradient strategy

Final sea salt concentration (%) 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)
2.0 (batch) 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
7 2.488 ± 0.044 53.5 ± 0.8 130 ± 4 466 ± 9
3.0 3 2.141 ± 0.007 46.1 ± 1.3 184 ± 5 750 ± 3
5 2.337 ± 0.009 53.8 ± 1.5 159 ± 5 556 ± 2
7 2.431 ± 0.042 56.0 ± 1.0 136 ± 0 456 ± 8
5.0 3 1.796 ± 0.026 51.2 ± 1.1 170 ± 1 623 ± 10
5 1.941 ± 0.010 58.2 ± 1.5 142 ± 4 458 ± 2
7 2.022 ± 0.030 61.2 ± 1.8 122 ± 6 376 ± 6
7.0 3 1.593 ± 0.027 47.1 ± 0.6 138 ± 4 549 ± 8
5 1.683 ± 0.013 53.3 ± 2.8 112 ± 7 394 ± 6
  7 1.735 ± 0.028 57.6 ± 3.0 98 ± 7 320 ± 5
  1. Before transfer to high salinity, the cultures were grown with 2% sea salt for around two days. The values are the mean ± standard deviation of three replicated experiments. (Light intensity = 200 μmol m-2 s-1; CO2 aeration = 2.0%; CO2 flow rate = 0.05 vvm).