Fatty Acid Composition of the Seed Oils of Selected Vicia L. Taxa from Tunisia

Figures & data

Figure 1. Comparative bar charts of the fatty acid composition (individual saturated fatty acids) of Vicia sativa, Vicia villosa and Vicia narbonensis oilseeds (% of total fatty acids). TFA, total fatty acids; nd, not detected; nr, not reported.

Figure 2. Comparative bar charts of the fatty acid composition (individual monounsaturated fatty acids) of Vicia sativa, Vicia villosa and Vicia narbonensis oilseeds (% of total fatty acids). TFA, total fatty acids; t, trans; c, cis; nd, not detected; nr, not reported.

Figure 3. Comparative bar charts of the fatty acid composition (individual polyunsaturated fatty acids) of Vicia sativa, Vicia villosa and Vicia narbonensis oilseeds (% of total fatty acids). TFA, total fatty acids; c, cis; nd, not detected; nr, not reported.

Figure 4. Comparative bar charts of the fatty acid composition (other detected fatty acids, groups of fatty acids and fatty acids ratios) of Vicia sativa, Vicia villosa and Vicia narbonensis oilseeds (% of total fatty acids). TFA, total fatty acids; FA, fatty acids; SFA, saturated fatty acids; MUFA, monounsaturated fatty acids; PUFA, polyunsaturated fatty acids; UFA, unsaturated fatty acids.

Table 1. Dry matter content and fatty acid composition of the seeds of selected Vicia L. taxa grown in Tunisia.

	V. sativa				V. villosa			V. narbonensis	SEM	P
	var. commune	var. Languedoc	var. Mghila	subsp. amphicarpa	var. Sejenane	acc. 2565	acc. 3615	-
DM, g kg^–1	894.7	895.0	893.3	893.8	892.4	894.8	896.6	894.1	0.43	ns
FA composition^°
C12:0	0.84	0.85	1.14	0.97	0.84	1.00	1.00	0.86	0.032	ns
0.07	0.07	0.09	0.07	0.07	0.07	0.06	0.07	0.002	ns
C14:0	2.97^ab	3.04^ab	3.46^a	2.88^ab	2.96^ab	2.54^b	3.08^ab	2.36^b	0.090	^*
0.23^ab	0.24^ab	0.26^a	0.21^bc	0.23^ab	0.18^c	0.19^bc	0.19^bc	0.007	^**
C16:0	219.92^bc	221.47^bc	225.73^bc	222.11^bc	224.44^bc	250.56^ab	281.07^a	189.86^c	6.629	^***
17.07^ab	17.20^ab	16.89^ab	16.15^bc	17.50^a	17.52^a	17.79^a	15.37^c	0.201	^***
C16:1 t 3	0.58^b	0.59^b	0.66^b	0.32^b	0.52^b	0.79^b	1.87^a	0.70^b	0.116	^***
0.05^b	0.05^b	0.05^b	0.02^b	0.04^b	0.06^b	0.12^a	0.06^b	0.007	^***
C16:1 c 9	0.68	0.51	0.60	0.45	0.48	0.52	0.44	0.50	0.034	ns
0.05	0.04	0.05	0.03	0.04	0.04	0.03	0.04	0.003	ns
C18:0	47.78^ab	46.98^ab	52.75^a	45.38^ab	49.25^a	39.70^bc	32.01^cd	24.35^d	2.374	^***
3.71^a	3.65^ab	3.95^a	3.30^b	3.84^a	2.77^c	2.02^d	1.97^d	0.194	^***
C18:1 c 9	203.63^d	181.68^d	220.24^cd	181.32^d	192.19^d	262.17^bc	346.79^a	303.29^ab	15.079	^***
15.80^d	14.11^ef	16.48^d	13.19^f	14.99^de	18.35^c	21.92^b	24.55^a	0.962	^***
C18:1 c 11	7.98^cd	8.27^cd	8.73^bc	7.05^d	7.58^cd	10.23^b	12.45^a	8.25^cd	0.427	^***
0.62^bc	0.64^abc	0.65^abc	0.51^c	0.59^bc	0.72^ab	0.79^a	0.67^ab	0.021	^**
C18:2 c 9c 12 (n6)	699.10^ab	717.17^ab	713.18^ab	791.18^a	695.18^ab	761.06^a	801.93^a	647.87^b	13.589	^**
54.27^bc	55.68^ab	53.37^c	57.53^a	54.21^bc	53.21^c	50.75^d	52.46^cd	0.502	^***
C18:3 c 6c 9c 12 (n6)	0.74^bc	0.86^abc	0.71^c	1.00^a	0.93^ab	0.84^abc	0.86^abc	nd	0.028	^**
	0.06	0.07	0.05	0.07	0.07	0.06	0.05	-	0.002	ns
C18:3 c 9c 12c 15 (n3)	84.53^a	84.74^a	84.97^a	97.72^a	83.43^a	84.06^a	85.28^a	42.01^b	4.034	^***
6.57^ab	6.58^ab	6.36^ab	7.10^a	6.51^ab	5.87^bc	5.40^c	3.40^d	0.283	^***
C20:0	12.77^a	12.90^a	14.62^a	13.13^a	13.48^a	9.71^b	7.26^b	8.58^b	0.655	^***
0.99^a	1.00^a	1.09^a	0.95^a	1.05^a	0.68^b	0.46^c	0.69^b	0.055	^***
C20:1 c 11	2.79^b	3.28^ab	3.75^ab	3.92^a	3.89^a	3.61^ab	3.74^ab	3.93^a	0.106	^*
0.22^b	0.25^ab	0.28^ab	0.28^ab	0.30^a	0.25^ab	0.24^ab	0.32^a	0.009	^*
C20:2 c 11c 14 (n6)	0.82^d	1.33^abc	1.69^a	1.37^ab	1.06^bcd	1.02^bcd	0.83^cd	1.25^abcd	0.075	^***
0.06^bc	0.10^ab	0.13^a	0.10^ab	0.08^abc	0.07^bc	0.05 ^c	0.10^ab	0.006	^**
C20:4 c 5c8c 11c 14 (n6)	nd	nd	nd	1.07	1.22	nd	nd	nd	0.083	ns
	-	-	-	0.08	0.10	-	-	-	0.008	ns
C22:0	1.98^bc	2.59^ab	2.16^bc	2.91^a	2.54^ab	2.10^bc	1.76^cd	1.34^d	0.124	^***
0.15^bcd	0.20^ab	0.16^bc	0.21^a	0.20^ab	0.15^cd	0.11^d	0.11^d	0.010	^***
C24:0	1.13^c	1.66^bc	1.91^ab	2.39^ab	2.47^a	nd	nd	nd	0.171	^**
0.09^b	0.13^ab	0.14^ab	0.17^a	0.19^a	-	-	-	0.013	^**
∑SFA	287.38^a	289.49^a	301.76^a	289.77^a	295.96^a	305.60^a	326.17^a	227.35^b	7.217	^**
22.31^abc	22.48^ab	22.58^ab	21.07^cd	23.07^a	21.37^bcd	20.64^d	18.40^e	0.368	^***
∑MUFA	215.65^d	194.33^d	233.97^cd	193.06^d	204.66^d	277.32^bc	365.28^a	316.67^ab	15.540	^***
16.74^d	15.09^ef	17.51^d	14.04^f	15.96^de	19.42^c	23.10^b	25.64^a	0.981	^***
∑PUFA	785.18^ab	804.09^ab	800.55^ab	892.35^a	781.81^ab	846.98^a	888.90^a	691.13^b	16.765	^**
60.96^bc	62.43^b	59.91^c	64.89^a	60.97^bc	59.22^c	56.26^d	55.97^d	0.728	^***
∑UFA	1000.83^b	998.42^b	1034.51^b	1085.40^b	986.46^b	1124.30^ab	1254.17^a	1007.79^b	23.294	^**
77.69^cde	77.52^de	77.42^de	78.93^bc	76.93^e	78.63^bcd	79.36^b	81.60^a	0.368	^***
TFA	1288.21^b	1287.91^b	1336.28^b	1375.16^b	1282.42^b	1429.90^ab	1580.34^a	1235.14^b	28.339	^**
	100	100	100	100	100	100	100	100	-	-
∑UFA/∑SFA	3.48^cd	3.45^cd	3.43^cd	3.75b^c	3.34^d	3.68^bcd	3.84^b	4.44^a	0.087	^***
∑PUFA/∑MUFA	3.65^cd	4.14^b	3.42^d	4.62^a	3.82^bc	3.06^e	2.44^f	2.18^f	0.200	^***
∑n6 PUFA/∑n3 PUFA	8.29^b	8.29^b	8.43^b	8.14^b	8.37^b	9.12^b	9.43^b	15.46^a	0.598	^***

DM, dry matter; FA, fatty acids; TFA, total fatty acids; t, trans; c, cis; SFA, saturated fatty acids; MUFA, monounsaturated fatty acids; PUFA, polyunsaturated fatty acids; UFA unsaturated fatty acids; nd, not detected.

°For each fatty acid (except for the fatty acid ratios), values in upper row represent concentrations (mg 100 g–¹ DM), while those in lower row are % of TFA.

^a-fMeans within a row with different letters differ significantly.

*P≤0.05

**P≤0.01

***P≤0.001; ns, not significant (P>0.05).