Table 4.
Fatty acid composition (μg/g algal dry weight) of the algal dichloromethane-extracts after methyl ester derivatization analyzed by GC-FID
| Compound | RRI a | S. boveanum | C. myrica | H. flagelliformis |
|---|---|---|---|---|
| Heptadecane | 1698 | - | - | 4.1 ± 0.63 |
| Tetradecanoic acid methyl ester | 1718 | 8.1 ± 0.7 | 20.3 ± 3.5 | 8.2 ± 0.9 |
| 9-(Z)-Hexadecenoic acid methyl ester | 1900 | 4.0 ± 1.2 | 54.6 ± 36.3 | - |
| Hexadecanoic acid methyl ester | 1922 | 58.2 ± 4.5 | 165.7 ± 23.7 | 95.9 ± 11.5 |
| 9,12-(Z,Z)-octadecadienoic acid methyl ester | 2094 | - | 5.8 ± 1.8 | - |
| 9-(Z)-octadecenoic acid methyl ester | 2101 | 8.4 ± 2.4 | 30.1 ± 10.6 | 8.1 ± 1.2 |
| 9-(E)-octadecenoic acid methyl ester | 2107 | - | 16.1 ± 2.0 | 7.9 ± 1.03 |
| Octadecanoic acid methyl ester | 2120 | 3.6 ± 0.7 | 11.9 ± 1.5 | 4.6 ± 0.3 |
a. Relative retention indices (RRI) were compared to those obtained in GC-MS for correlation of the peaks in the two chromatograms