Table 2

Fatty acids composition of A. microcarpus seed oil.

N Chemical Name Common or systemic names RT min Formula Saturated/unsaturated Shorthand notation (Δ) % Percentage of total fats

E C M R MK
1 Dodecanoic acid, methyl ester Lauric acid 5.0 C12H24O2 S 12 :00 - 0.05 0.11 0.93 0.38
2 Tetradecanoic acid, methyl ester Myristic acid 6.5 C14H28O2 S 14 :00 - - - 0.68 0.34
3 Tridecanoic acid, 12-methyl, methyl ester Isomyristic acid 6.8 C14H28O2 S 14 :00 - 0.02 0.09 0.33 -
4 Pentadecanoic acid, methyl ester Pentadecanoic acid 9.5 C15H30O2 S 15 :00 - 0.09 0,33 - -
5 (Z)-9-Hexadecenoic acid, methyl ester, Palmitoleic acid 10.0 C16H30O2 U 16: 1Δ9 - 6.82 8.06 28.64 3.55
6 Hexadecanoic acid, methyl ester Palmitic acid 15.0 C16H32O2 S 16 :00 - 0.08 - - -
7 Heptadecanoic acid, methyl ester Margaric acid 19.8 C17H34O S 17 :00 - 8.35 13.59 6.97 1.14
8 (Z,Z)-9,12-Octadecadienoic acid, methyl ester Linoleic acid 20.1 C18H32O2 U 18: 2Δ9,12 1.15 76.13 74.93 4.76 1.06
9 (Z)-9-Octadecenoic acid, methyl ester Oleic acid 21.0 C18H34O2 U 18 :1Δ9 - 3.28 1.48 4.75 0.89
10 Octadecanoic acid, methyl estere octadécanoïque Stearic acid 23.0 C18H36O2 S 18 :00 - - - - 1.8
11 (Z)-6-Octadecenoic acid, methyl ester Petroselinic acid 23.7 C18H34O2 U 18 :1Δ6 - - - - 17.16
12 (Z,Z,Z)-octadeca-9,12,15-trienoic acid α-Linolenic acid 25.0 C18H30O2 U 18: 3 Δ9,12,15 3.3 - - - 6.97
13 Eicosanoic acid, methyl ester Arachidic acid 26.5 C20H40O2 S 20 :00 - - - 20.57 -
14 Docosanoic acid, methyl ester Behenic acid 27.5 C22H44O2 S 22 :00 - - - 5.68 16.02
15 (Z)-13-Docosenoic acid, methyl ester Erucic acid 30.5 C22H42O2 U 22 :1Δ13 17.25 - - 3.25 -
16 Tricosanoic acid, methyl ester Tricosanoic acid 32.5 C23H46O2 S 23 :00 - - - 17.08 23.83
17 Tetracosanoic acid, methyl ester Lignoceric acid 34.9 C24H48O3 S 24 :00 68.64 - - 2.07 3.1
18 15-tetracosenoic acid, methyl ester Nervonic acid 38.5 C24H46O2 U C24 :1 Δ15 5.38 - - - 18.74
Total identified 95.72 94.82 98.59 95.71 94.98
Saturated fatty acids (SFAs) 68.64 8.59 14.12 54.31 46.61
Unsaturated fatty acids (UFAs) 27.08 86.23 84.47 41.4 48.37
Monounsaturated fatty acids (MUFAs) 22.63 10.1 9.54 36.64 40.34
Polyunsaturated fatty acids (PUFAs) 4.45 76.13 74.93 4.76 8.03
Others 4.28 5.18 1.41 4.29 5.02
Ratio ω6/ω3 0.35 NA NA NA 0.15

Values are expressed as percentages (% of total fatty acids) based on a single determination (n = 1). Sampling regions: El Jadida (E), Casablanca (C), Mohammedia (M), Rabat (R), and Meknes (MK). NA: not applicable.

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