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Table 2 Effects of diluting seawater on growth and TAG content of C. gracilis

From: Advantageous characteristics of the diatom Chaetoceros gracilis as a sustainable biofuel producer

  Concentration of sea salts (%)
1 2 3 4
Doubling time (h) 12.4 ± 3.1 10.0 ± 0.6 10.2 ± 0.2 10.5 ± 0.8
Cell density on 4th day (106 cells/mL) 4.73 ± 0.23 5.66 ± 0.20 6.09 ± 0.27 6.16 ± 0.24
Cell density on 10th day (106 cells/mL) 6.34 ± 0.25 6.35 ± 0.33 7.24 ± 0.28 6.40 ± 0.65
Volume-specific TAG on 10th day (mg/L) 227 ± 14 194 ± 16 196 ± 26 189 ± 23
Cell-specific TAG on 10th day (pg/cell) 35.4 ± 1.1 35.0 ± 3.0 30.7 ± 3.0 33.2 ± 3.2
  1. Cells cultivated in various concentrations of seawater made from sea salts, seawater enriched with F/2 medium without vitamins, and n = 3–4