Comparative Oil Composition Study of the Endemic Moroccan Olive (Olea europaea subsp. maroccana) and Wild Olive (var. Sylvestris) in Central West Morocco
Table 2
Fatty acid composition (%) of subsp. maroccana (OEM) and O. e. subsp. europaea var. sylvestris (OES) for two successive years, 2017 and 2018.
Fatty acid
OEM (N = 20)
OES (N = 20)
EVOO (IOC, 2019)
2017
2018
2017
2018
Palmitic acid
C16 : 0
10.65 ± 0.03a
10.89 ± 0.07b
18.66 ± 0.06c
19.02 ± 0.01d
7.50–20.00
Palmitoleic acid
C16 : 1 ω7
0.65 ± 0.00a
0.65 ± 0.01a
2.52 ± 0.01b
2.57 ± 0.00c
0.30–3.50
Margaric acid
C17 : 0
0.09 ± 0.01c
0.08 ± 0.02c
0.01 ± 0.00a
0.04 ± 0.00b
≤0.4
Margaroleic acid
C17 : 1
0.05 ± 0.01ab
0.03 ± 0.01a
0.09 ± 0.01c
0.07 ± 0.00bc
≤0.6
Stearic acid
C18 : 0
3.30 ± 0.00c
3.29 ± 0.02c
1.99 ± 0.08a
2.16 ± 0.08b
0.50–5.00
Oleic acid
C18 : 1 ω9
63.22 ± 0.07a
63.54 ± 0.25a
67.79 ± 0.14c
67.26 ± 0.08b
55.0–83.0
Linoleic acid
C18 : 2
19.81 ± 0.00c
19.19 ± 0.16b
8.20 ± 0.02a
8.13 ± 0.01a
2.50–21.00
Linolenic acid
C18 : 3
1.26 ± 0.03b
1.37 ± 0.05c
0.75 ± 0.00a
0.74 ± 0.00a
≤1.00
Arachidic acid
C20 : 0
0.60 ± 0.00b
0.60 ± 0.00b
0.00 ± 0.00a
0.00 ± 0.00a
≤0.60
Gadoleic acid
C20 : 1
0.35 ± 0.00b
0.35 ± 0.00b
0.00 ± 0.00a
0.00 ± 0.00a
≤0.50
Unsaturated fatty acid
UFA
85.35 ± 0.04c
85.14 ± 0.05b
79.34 ± 0.14a
78.76 ± 0.09a
Saturated fatty acid
SFA
14.65 ± 0.04a
14.85 ± 0.05a
20.66 ± 0.14b
21.22 ± 0.09c
Unsaturated fatty acid/saturated fatty acid
UFA/SFA
5.82 ± 0.02d
5.73 ± 0.02c
3.84 ± 0.03b
3.71 ± 0.02a
Values are expressed as mean ± SD. Different letters in the same line designate significant differences .
