Table 2 The relative content (%) of fatty acids from Porosira glacialis extracted in dichloromethane/methanol (2:1 v/v; DCM/MeOH), hexane/isopropanol (2:1 v/v; hexane/IPA) and hexane, using three pre-treatments; no treatment (control), shaking at 1000 RPM for 60 min, (mixing), or sonication at 20 kHz for 10 min (sonication).
P. glacialis | DCM/MeOH | Hexane/IPA | Hexane | ||||||
---|---|---|---|---|---|---|---|---|---|
FA | Control | Mixing | Sonication | Control | Mixing | Sonication | Control | Mixing | Sonication |
C14:0 | 4.60 ± 0.42 | 4.63 ± 0.38 | 4.94 ± 0.32 | 4.45 ± 0.10 | 4.51 ± 0.35 | 5.30 ± 0.33 | 4.22 ± 0.12 | 4.54 ± 0.18 | 4.38 ± 0.15 |
C16:0 | 7.03 ± 3.81 | 7.33 ± 3.43 | 5.86 ± 0.57 | 5.48 ± 0.13 | 6.67 ± 2.38 | 5.91 ± 0.31 | 5.43 ± 0.17 | 5.70 ± 0.24 | 6.06 ± 0.12 |
C16:1n-7 | 11.16 ± 1.02 | 11.45 ± 0.84 | 11.89 ± 0.33 | 11.89 ± 0.16 | 11.44 ± 0.45 | 11.94 ± 0.23 | 13.43 ± 0.13 | 13.39 ± 0.42 | 13.23 ± 0.07 |
C16:2n-4 | 3.21 ± 0.56 | 3.24 ± 0.49 | 3.48 ± 0.05 | 3.36 ± 0.06 | 3.20 ± 0.27 | 3.40 ± 0.06 | 2.90 ± 0.02 | 3.95 ± 2.25 | 2.86 ± 0.02 |
C16:3n-4 | 6.32 ± 1.12 | 6.42 ± 0.96 | 6.91 ± 0.11 | 7.09 ± 0.15 | 6.87 ± 0.61 | 7.09 ± 0.15 | 5.87 ± 0.01 | 5.78 ± 0.17 | 5.97 ± 0.06 |
C16:4n-1 | 31.38 ± 4.62 | 30.79 ± 3.32 | 29.53 ± 0.46 | 30.32 ± 0.64 | 30.86 ± 1.75 | 29.87 ± 0.71 | 28.28 ± 0.11 | 27.72 ± 0.75 | 27.73 ± 0.31 |
C18:4n-3 | 4.69 ± 0.73 | 4.71 ± 0.63 | 4.93 ± 0.07 | 4.90 ± 0.10 | 4.63 ± 0.32 | 4.94 ± 0.07 | 5.37 ± 0.02 | 5.17 ± 0.14 | 5.09 ± 0.07 |
C20:5n-3 | 28.68 ± 5.24 | 29.18 ± 4.55 | 30.73 ± 0.51 | 30.31 ± 0.64 | 28.47 ± 2.58 | 29.43 ± 0.43 | 31.09 ± 0.21 | 30.99 ± 1.06 | 30.90 ± 0.15 |
C22:6n-3 | 2.93 ± 1.54 | 2.26 ± 1.81 | 1.73 ± 1.85 | 2.20 ± 1.73 | 3.34 ± 0.26 | 2.12 ± 1.64 | 3.41 ± 0.07 | 2.76 ± 1.40 | 3.79 ± 0.08 |
SFA | 11.63 ± 4.21 | 11.96 ± 3.73 | 10.80 ± 0.88 | 9.93 ± 0.12 | 11.19 ± 2.72 | 11.20 ± 0.61 | 9.79 ± 0.32 | 10.24 ± 0.36 | 10.44 ± 0.25 |
PUFA | 77.21 ± 3.24 | 76.59 ± 3.09 | 77.30 ± 1.18 | 78.19 ± 0.23 | 77.37 ± 2.28 | 76.86 ± 0.77 | 76.78 ± 0.36 | 76.37 ± 0.77 | 76.34 ± 0.32 |