Table 3.
Fatty acid composition (wt.%) present in the microalgae Dunaliella tertiolecta and Nannochloropsis oculata under two different light intensity and photoperiod regimes for 23 days.
| Fatty acid (% of total FA) |
Dunaliella tertiolecta (120 μE/m2/s, 25ᵒC, 16:8h light/dark cycle) |
Dunaliella tertiolecta (250 μE/m2/s, 25ᵒC, 13:11h light/dark cycle) |
Nannochloropsis oculata (120 μE/m2/s, 25ᵒC, 16:8h light/dark cycle) |
Nannochloropsis oculata (250 μE/m2/s, 25ᵒC, 13:11h light/dark cycle) |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SSM (Distilled water) | SSM (natural seawater media) | F/2 | SSM (Distilled water) | SSM (natural seawater media) | F/2 | SSM (Distilled water) | SSM (natural seawater media) | F/2 | SSM (natural seawater media) | SSM (Distilled water) | F/2 | |
| C16:0 | 15.51 ± 0.01 | 22.02 ± 0.03 | 31.95 ± 0.03 | 75.58 ± 0.01 | 38.78 ± 0.011 | 36.00 ± 0.02 | 18.18 ± 0.01 | 17.27 ± 0.04 | 2 8.52 ± 0.09 | 35.43 ± 0.01 | 46.00 ± 0.03 | 28.52 ± 0.02 |
| C 17:0 | 0.39 ± 0.012 | 0.54 ± 0.013 | 1.86 ± 0.06 | 2.10 ± 0.017 | 2.45 ± 0.05 | 4.87 ± 0.016 | 2.08 ± 0.06 | 0.31 ± 0.08 | 0.67 ± 0.09 | 2.08 ± 0.04 | ||
| C18:0 | 6.40 ± 0.07 | 8.64 ± 0.01 | 11.47 ± 0.07 | 19.09 ± 0.025 | 5.74 ± 0.013 | 30.03 ± 0.01 | ||||||
| C20:0 | 2.23 ± 0.04 | 3.01 ± 0.015 | 1.21 ± 0.01 | 0.70 ± 0.05 | ||||||||
| C 21:0 | 0.16 ± 0.025 | |||||||||||
| C 22:0 | 0.19 ± 0.046 | |||||||||||
| subtotal | 24.88 | 34.21 | 33.81 | 87.05 | 57.87 | 38.1 | 20.63 | 22.14 | 30.6 | 42.69 | 77.4 | 30.6 |
| C16:1 | 3.70 ± 0.019 | 2.01 ± 0.01 | 1.66 ± 0.02 | 6.00 ± 0.04 | 6.47 ± 0.02 | 6.04 ± 0.04 | 14.03 ± 0.022 | 4.10 ± 0.01 | ||||
| C18:1 | 5.10 ± 0.011 | 7.94 ± 0.022 | 29.41 ± 0.01 | 2.37 ± 0.05 | 13.00 ± 0.03 | 3.97 ± 0.06 | 6.21 ± 0.013 | 24.89 ± 0.01 | 15.01 ± 0.06 | 3.10 ± 0.014 | 15.07 ± 0.02 | |
| Subtotal | 8.8 | 9.95 | 31.07 | 2.37 | 0 | 19 | 10.44 | 12.25 | 24.89 | 29.04 | 7.2 | 15.07 |
| C 18:2 | 8.30 ± 0.03 | 8.45 ± 0.024 | 16.29 ± 0.04 | 5.99 ± 0.01 | 19.27 ± 0.01 | 12.11 ± 0.021 | 6.54 ± 0.04 | 10.21 ± 0.12 | 15.07 ± 0.02 | 9.98 ± 0.02 | 8.53 ± 0.09 | 21.25 ± 0.03 |
| C16:2 | 6.20 ± 0.05 | 3.88 ± 0.045 | 5.53 ± 0.09 | 7.30 ± 0.010 | 6.23 ± 0.06 | 5.33 ± 0.01 | 4.23 ± 0.04 | |||||
| C 16:3 (n-3) | 0.10 ± 0.021 | 6.54 ± 0.013 | 6.22 ± 0.043 | 2.40 ± 0.05 | 3.46 ± 0.06 | 12.20 ± 0.01 | 7.25 ± 0.08 | 10.48 ± 0.04 | 2.12 ± 0.07 | |||
| C16:4 | 14.40 ± 0.013 | 1.36 ± 0.01 | 1.45 ± 0.012 | 0.70 ± 0.11 | 4.30 ± 0.037 | 1.54 ± 0.012 | ||||||
| C 18:3 | 30.10 ± 0.02 | 23.80 ± 0.022 | 5.54 ± 0.021 | 2.21 ± 0.023 | 18.56 ± 0.03 | 11.30 ± 0.03 | 48.27 ± 0.21 | 34.82 ± 0.06 | 21.24 ± 0.01 | 9.10 ± 0.011 | 6.89 ± 0.04 | 32.49 ± 0.01 |
| C 20:5 | 0.41 ± 0.032 | 0.52 ± 0.02 | 7.81 ± 0.025 | |||||||||
| C 22:6 | 0.27 ± 0.02 | 1.21 ± 0.011 | ||||||||||
| C 20:4 | 0.48 ± 0.01 | 1.42 ± 0.04 | 0.52± | |||||||||
| Subtotal | 59.1 | 44.03 | 35.03 | 10.6 | 41.29 | 42.91 | 68.99 | 65.14 | 44.2 | 19.08 | 15.42 | 53.74 |
SFA: Saturated Fatty Acid; MUFA: Monounsaturated Fatty Acid; PUFA: Polyunsaturated Fatty Acid. ND: Not Detected, Average of cultures in duplicate.