Chemical Characterization and Antibacterial Properties of Fontitrygon margarita (Günther, 1870) Liver Oil
Table 2
Fatty acid profile of Fontitrygon margarita liver oils according to the extraction method.
Fatty acids
Common name of fatty acid
Oil extracted by cooking-pressing (%)
Oil extracted by exudation (%)
C12:0
Lauric acid
0.03 ± 0.01a
0.12 ± 0.05b
C14:0
Myristic acid
2.73 ± 0.26a
2.64 ± 0.34a
C16:0
Palmitic acid
9.96 ± 1.30a
9.94 ± 1.96a
C17:0
Margaric acid
0.20 ± 0.04a
0.25 ± 0.04a
C18:0
Stearic acid
2.40 ± 0.24a
2.50 ± 0.33a
C20:0
Arachidic acid
0.30 ± 0.09a
0.40 ± 0.06a
C22:0
Béhénic acid
0.16 ± 0.03a
0.15 ± 0.04a
C24:0
Lignoceric acid
0.08 ± 0.01a
0.07 ± 0.01a
ΣSFA
15.86 ± 1.57a
16.07 ± 2.41a
C12:1
Lauroleic acid
2.60 ± 0.39a
2.58 ± 0.26a
C16:1
Palmitoleic acid
3.25 ± 0.64a
2.96 ± 0.44a
C17:1
Heptadecenoïc acid
0.17 ± 0.05a
0.34 ± 0.05b
C18:1
Oleic acid
41.90 ± 4.59a
41.23 ± 5.19a
C20:1 ω6
Eicosatetraenoïc acid
4.45 ± 0.44a
4.42 ± 1.24a
C22:1
Erucic acid
3.25 ± 0.55a
3.50 ± 0.69a
C24:1 ω9
Nervonic acid
0.35 ± 0.06a
0.38 ± 0.07a
ΣMUFA
55.97 ± 8.40a
55.41 ± 7.20a
C18:2 ω6
Linoleic acid
12.92 ± 1.66a
13.07 ± 1.96a
C18:3 ω3
α-Linolenic acid
4.71 ± 0.71a
4.70 ± 1.32a
C18:3 ω6
γ-Linolenic acid (GLA)
0.15 ± 0.02a
0.32 ± 0.09b
C18:4 ω3
Stearidonic acid (moroctique)
0.84 ± 0.11a
0.82 ± 0.12a
C20:4 ω6
Eicosatetraenoïc acid (ETA)
0.30 ± 0.04a
0.40 ± 0.05b
C20:4 ω6
Arachidonic acid
0.29 ± 0.06a
0.29 ± 0.03a
C20:5 ω3
Eicosapentaenoïc acid (EPA)
3.05 ± 0.40a
3.06 ± 0.46a
C22:4 ω6
Docosapentaenoïc acid (DPA)
0.13 ± 0.02a
0.16 ± 0.03a
C22:5 ω3
Docosapentaenoïc acid
1.35 ± 0.13a
1.30 ± 0.36a
C22:5 ω6
Docosahexaenoïc acid (DHA)
0.08 ± 0.01a
0.10 ± 0.01a
C22:6 ω3
Docosahexaenoïc acid (DHA)
4.35 ± 0.43a
4.30 ± 0.56a
ΣPUFA
28.17 ± 3.88a
28.52 ± 4.23a
Total fatty acids
100.00 ± 0.00a
100.0 ± 0.00a
Number of fatty acids
26
26
Σω3
14.3 ± 1.86a
14.18 ± 2.55a
Σω6
13.87 ± 1.37a
14.34 ± 2.15a
Σω3/Σω6
1.03 ± 0.13a
0.98 ± 0.17a
ΣPUFAs/ΣSFA
1.77 ± 0.27a
1.78 ± 0.32a
DHA/EPA
1.45 ± 0.14a
1.44 ± 0.26a
PUFA: polyunsaturated fatty acids; MUFA: monounsaturated fatty acids; SFA: saturated fatty acids. In the same row, the numbers with the same letters are not significantly different (), =3.