Table 3. Changes in total fatty acids (mg∙g-1 dry weight) during different growth stages of Nannochloropsis cultivated at two NP concentrations.
| high—NP | low—NP | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 8 | 12 | 16 | 8 | 12 | 16 | |||||||
| C14:0 | 4.5 | (0.7) | 5.4 | (0.6) | 7.5 | (0.9) | 5.5 | (0.4) | 10.3 | (0.9) | 15.0 | (1.9) |
| C16:0 | 19.4 | (0.3) | 21.6 | (2.2) | 31.0 | (2.8) | 23.6 | (2.0) | 62.5 | (1.0) | 103.7 | (3.7) |
| C16:1n-7 | 21.8 | (1.2) | 23.0 | (2.8) | 28.3 | (1.5) | 23.6 | (1.5) | 43.1 | (1.1) | 69.2 | (3.5) |
| C18:0 | 0.3 | (0.4) | 0.2 | (0.2) | 0.5 | (0.8) | 0.8 | (1.6) | 1.8 | (0.8) | 3.7 | (0.5) |
| C18:1n-9 | 0.9 | (1.5) | 1.2 | (1.9) | 4.4 | (1.3) | 1.3 | (2.1) | 12.8 | (1.2) | 28.0 | (1.9) |
| C18:2n-6 | 2.5 | (1.2) | 2.9 | (2.5) | 4.4 | (2.0) | 1.7 | (1.9) | 5.6 | (0.6) | 7.6 | (0.7) |
| C20:4n-6 | 0.3 | (0.3) | 0.3 | (0.3) | 0.3 | (0.3) | 0.3 | (0.3) | 5.3 | (2.0) | 6.8 | (0.1) |
| C20:5n-3 | 41.5 | (2.7) | 43.2 | (3.6) | 49.3 | (3.9) | 43.2 | (1.1) | 45.0 | (5.1) | 46.8 | (2.4) |
| Σ SAT | 24.0 | (0.7) | 27.0 | (1.7) | 38.8 | (4.2) | 29.9 | (1.6) | 74.6 | (2.1) | 122.4 | (6.0) |
| Σ MUFA | 22.5 | (0.6) | 23.9 | (3.0) | 32.7 | (2.5) | 24.6 | (3.3) | 55.9 | (0.8) | 97.2 | (3.1) |
| Σ PUFA | 44.4 | (1.4) | 46.4 | (5.7) | 53.9 | (6.0) | 45.2 | (2.1) | 55.9 | (7.4) | 61.2 | (3.0) |
| Σ ω-3 | 41.5 | (2.7) | 43.2 | (3.6) | 49.3 | (3.9) | 43.2 | (1.1) | 45.0 | (5.1) | 46.8 | (2.4) |
| Σ ω-6 | 2.8 | (1.5) | 3.2 | (2.6) | 4.7 | (2.1) | 2.0 | (2.1) | 10.9 | (2.5) | 14.5 | (0.6) |
| ω-3/ω-6 Ratio+ | 14.6 | 13.4 | 10.5 | 21.3 | 4.1 | 3.2 | ||||||
| Total Fatty Acids | 90.8 | (0.7) | 97.3 | (10.1) | 125.4 | (10.9) | 99.6 | (6.4) | 186.3 | (4.6) | 280.8 | (6.0) |
The time points correspond to the exponential (day 8), early stationary (day 12) and stationary phase (day 16) respectively. For each, the mean and (± SD) is given, n = 3.
+ Indicates the ratio of treatment means.
SAT- saturated fatty acids; MUFA- monounsaturated fatty acids; PUFA—polyunsaturated fatty acids