Comparative Oil Composition Study of the Endemic Moroccan Olive (Olea europaea subsp. maroccana) and Wild Olive (var. Sylvestris) in Central West Morocco

Table 1

Oil content and quality indices of subsp. maroccana (OEM) and O. e. subsp. europaea var. sylvestris (OES) oils compared to EVOO for two successive years, 2017 and 2018.

	OEM (N = 20)		OES (N = 20)		EVOO (IOC. 2019)
	2017	2018	2017	2018
Oil content (% dry matter)	5.32 ± 0.01a	5.46 ± 0.07a	8.65 ± 0.11b	9.10 ± 0.20c
Free fatty acid (%)	0.30 ± 0.02a	0.33 ± 0.02a	0.30 ± 0.01a	0.31 ± 0.02a	≤0.80
K232	2.32 ± 0.01c	2.08 ± 0.04b	2.03 ± 0.02b	1.89 ± 0.04a	≤2.50
K270	0.14 ± 0.03b	0.12 ± 0.01ab	0.09 ± 0.03a	0.10 ± 0.02ab	≤0.22
Peroxide value (meqO2/kg oil)	3.41 ± 0.10c	2.66 ± 0.07d	6.38 ± 0.12a	5.21 ± 0.09b	≤20

Values are expressed as mean ± SD. Different letters in the same line designate significant differences (p < 0.05). K232 and K270: ultraviolet specific extinction at 232 and 270 nm.