Table 4.
Fatty acid pattern (g (100 g−1) FAa) of U. lactuca and extracted fraction
| Fatty acids | U. lactuca | Extracted fraction | U. lactuca, literatureb | Soybean meala | |
|---|---|---|---|---|---|
| C14:0 | Myristic acid | 0.5 | 0.9 | 1.1–5.5 | 0.2 |
| C16:0 | Palmitic acid | 39.8 | 51.9 | 14.0–59.4 | 11.0 |
| Iso-C16:0 | Iso-Palmitic acid | 3.8 | 4.4 | na | na |
| C16:1n7 | Palmitoleic acid | 0.9 | 1.2 | 0.7–6.9 | 0.2 |
| C18:0 | Stearic acid | 0.5 | 0.6 | 1.9–8.4 | 4.0 |
| C18:1n9 | Oleic acid | 1.4 | 1.5 | 2.6–27.8 | 22.0 |
| C18:1n | Other isomers | 17.1 | 20.4 | na | na |
| C18:2n6 | Linoleic acid | 2.4 | 1.5 | 2.4–8.3 | 54.0 |
| C18:2 | Trans isomers | 5.7 | 2.9 | 1.7 | na |
| C18:3n3 | α-Linolenic acid | 10.9 | 5.5 | 2.8-4.4 | 8.0 |
| C18:4n3 | Stearidonic acid | 10.4 | 4.1 | 0.4 | na |
| C20:1 | Eicosenoic acid | <0.3 | <0.3 | 1.5–4.2 | na |
| C20:5n3 | Eicosapentaenoic acid | 1.4 | 0.3 | 1.0–5.0 | na |
| C22:0 | Behenic acid | 2.4 | 2.6 | 0.3–4.2 | na |
| C24:0 | Lignoceric acid | <0.3 | <0.3 | 9.5 | na |
| Not identified FA | 8.5 | 5.5 | 11.3 | 0.4 | |
| SFAa | 46.9 | 60.3 | 33.8–69.0 | 15.2 | |
| MUFAa | 19.4 | 23.0 | 5.1–36.7 | 22.2 | |
| PUFAa,c | 25.1 | 11.1 | 6.7–24.8 | 62.0 | |
| Total FA (g kg−1 DM) | 21.1 | 34.3 | 12.5 |
a FA fatty acid, SFA saturated fatty acids, MUFA monounsaturated fatty acids, PUFA polyunsaturated fatty acids
bData from Ortiz et al. (2006), Yaich et al. (2011) and Tabarsa et al. (2012); na not available, if one value is reported, only one reference was available for this fatty acid
cC18:2 trans isomers not included