From: Advantageous characteristics of the diatom Chaetoceros gracilis as a sustainable biofuel producer
Pigments | Amount of pigments (mg/L) | |||||||
---|---|---|---|---|---|---|---|---|
F/2 | Urea-F/2 | 67% sewage water | 2% liquid fertilizer | |||||
96Â h | 240Â h | 96Â h | 240Â h | 96Â h | 240Â h | 96Â h | 240Â h | |
Chlorophyll a | 3.77 ± 0.22 | 3.22 ± 0.17 | 3.45 ± 0.16 | 3.00 ± 0.09 | 0.778 ± 0.106 | 0.710 ± 0.043 | 2.85 ± 0.24 | 2.33 ± 0.04 |
Chlorophyll c | 0.778 ± 0.050 | 0.685 ± 0.040 | 0.672 ± 0.028 | 0.614 ± 0.014 | 0.163 ± 0.018 | 0.136 ± 0.010 | 0.549 ± 0.036 | 0.399 ± 0.006 |
Fucoxanthin | 2.01 ± 0.02 | 1.99 ± 0.10 | 1.95 ± 0.16 | 1.89 ± 0.05 | 0.433 ± 0.063 | 0.444 ± 0.029 | 1.39 ± 0.01 | 1.22 ± 0.05 |
Diadinoxanthin | 0.535 ± 0.059 | 0.564 ± 0.007 | 0.493 ± 0.020 | 0.529 ± 0.018 | 0.140 ± 0.019 | 0.193 ± 0.013 | 0.361 ± 0.071 | 0.375 ± 0.011 |
ß-Carotene | 0.115 ± 0.004 | 0.0759 ± 0.0025 | 0.0681 ± 0.0310 | 0.0695 ± 0.0022 | 0.0237 ± 0.0045 | 0.0255 ± 0.0010 | 0.0841 ± 0.0033 | 0.0670 ± 0.0006 |
Phosphate (ppm) | 3.46 | 3.46 | 1.3 | 1.73 | ||||
Nitrate (ppm) | 45 | 0 | 0 | 0 | ||||
Ammonium (ppm) | 0 | 0 | 6.7 | 33 | ||||
Cell density on 4th day (106 cells/mL) | 4.25 ± 0.37 | 4.90 ± 0.31 | 2.32 ± 0.49 | 4.02 ± 0.30 | ||||
Cell density on 10th day (106 cells/mL) | 6.19 ± 0.1 | 6.43 ± 0.47 | 4.05 ± 0.41 | 4.30 ± 0.22 |