From: Advantageous characteristics of the diatom Chaetoceros gracilis as a sustainable biofuel producer
 | 50% sewage water | 67% sewage water | ||
---|---|---|---|---|
1st subculture | 2nd subculture | 1st subculture | 2nd subculture | |
Doubling time (h) | 12.9 ± 0.4 | 19.2 ± 0.5 | 15.4 ± 0.5 | 18.3 ± 0.1 |
Cell density on 4th day (106 cells/mL) | 5.06 ± 0.02 | 4.24 ± 0.04 | 5.29 ± 0.39 | 4.79 ± 0.05 |
Cell density on 10th day (106 cells/mL) | 6.17 ± 0.08 | 4.95 ± 0.01 | 6.19 ± 0.14 | 5.99 ± 0.05 |
Volume-specific TAG on 10th day (mg/L) | 156 ± 4 | 135 ± 9 | 203 ± 9 | 164 ± 7 |
Cell-specific TAG on 10th day (pg/cell) | 25.2 ± 0.6 | 27.3 ± 1.8 | 32.8 ± 1.4 | 27.4 ± 1.0 |