. 2020 Apr 17;9(4):330. doi: 10.3390/antiox9040330

Table 1.

Average content of polar phenolic substances and of α-tocopherol ± standard deviation (SD) in the investigated monovarietal oils (ASC: Ascolana tenera, COR: Coroncina, MIG: Mignola, MOG: Piantone di Mogliano, RAG: Raggia) produced in 2015 and 2016 and in the total 2015/2016 samples.

	Hydroxytyrosol	Tyrosol	Vanillic Acid	p-Coumaric Acid	Ferulic Acid	Secoiridoid Derivatives	Pinoresinol	Acetoxy pinoresinol	Luteolin	Apigenin	Total Polar Phenolics	α-Tocopherol
	Average (mg kg⁻¹) ± SD
ASC 2015 (n = 6)	5.46 ^ab ± 2.14	6.00 ± 2.97	0.33 ± 0.16	0.10 ^ab ± 0.03	0.03 ^a ± 0.02	353.23 ± 108.89	12.49 ^a ± 5.55	5.98 ^a ± 7.54	2.30 ^ab ± 0.59	0.90 ^b ± 0.34	387.80 ^ab ± 182.13	270.91 ^adc ± 39.50
COR 2015 (n = 7)	4.06 ^a ± 1.62	4.67 ± 1.39	0.32 ± 0.17	0.11 ^a ± 0.04	0.03 ^a ± 0.03	340.19 ± 109.02	4.72 ^b ± 1.56	8.86 ^a ± 8.34	3.24 ^b ± 1.16	1.25 ^b ± 0.31	367.45 ^ab ± 113.52	^# 229.92 ^bc ± 16.48
MIG 2015 (n = 7)	8.75 ^b ± 5.16	9.24 ± 6.16	0.49 ± 0.23	0.09 ^ab ± 0.03	0.03 ^a ± 0.02	282.14 ± 113.72	^# 6.48 ^b ± 1.58	8.13 ^a ± 1.69	2.10 ^ab ± 0.47	0.49 ^a ± 0.15	317.94 ^ab ± 121.26	^# 295.94 ^a ± 25.69
MOG 2015 (n = 9)	2.38 ^a ± 1.53	5.11 ± 1.22	0.46 ± 0.21	0.12 ^a ± 0.04	0.08 ^b ± 0.02	248.22 ± 112.33	7.63 ^ab ± 2.33	5.31 ^a ± 4.32	1.49 ^a ± 0.95	0.94 ^b ± 0.30	271.73 ^a ± 112.89	192.35 ^b ± 42.15
RAG 2015 (n = 7)	^# 6.79 ^ab ± 2.79	6.86 ± 2.59	0.34 ± 0.14	^# 0.05 ^b ± 0.02	0.05 ^ab ± 0.02	429.75 ± 172.33	^# 3.83 ^b ± 0.54	35.47 ^b ± 10.34	3.08 ^b ± 1.47	1.25 ^b ± 0.18	487.48 ^b ± 175.89	215.98 ^bc ± 47.51
ASC 2016 (n = 8)	5.01 ± 2.86	6.24 ± 3.76	0.31 ± 0.19	0.12 ± 0.04	0.06 ± 0.02	334.77 ± 104.17	18.45 ^a ± 14.09	8.94 ^a ± 9.22	3.04 ^ab ± 0.99	0.92 ^ab ± 0.24	377.90 ± 103.23	356.68 ^bc ± 81.67
COR 2016 (n = 7)	5.32 ± 2.16	5.78 ± 2.78	0.35 ± 0.25	0.14 ± 0.06	0.05 ± 0.03	384.59 ± 127.68	6.27 ^b ± 1.25	5.52 ^a ± 4.65	3.61 ^ab ± 0.76	1.20 ^b ± 0.19	412.86 ± 133.15	^§ 351.16 ^bc ± 50.76
MIG 2016 (n = 8)	6.37 ± 1.98	5.53 ± 2.41	0.52 ± 0.47	0.09 ± 0.05	0.05 ± 0.02	339.73 ± 105.57	^§ 9.70 ^ab ± 1.74	10.30 ^a ± 5.03	2.51 ^ab ± 0.63	0.59 ^a ± 0.28	375.47 ± 105.31	^§ 397.26 ^b ± 36.94
MOG 2016 (n = 8)	4.94 ± 5.46	7.47 ± 6.65	0.35 ± 0.16	0.18 ± 0.12	0.07 ± 0.04	335.27 ± 112.60	10.29 ^ab ± 5.77	9.03 ^a ± 6.41	2.06 ^a ± 0.75	0.92 ^ab ± 0.29	370.68 ± 119.33	259.01 ^a ± 44.19
RAG 2016 (n = 12)	^§ 3.83 ± 2.08	6.20 ± 3.66	0.44 ± 0.26	^§ 0.13 ± 0.09	0.07 ± 0.04	349.47 ± 131.68	^§ 5.98 ^b ± 2.31	31.77 ^b ± 12.38	4.05 ^b ± 2.14	1.10 ^b ± 0.41	403.13 ± 132.91	286.66 ^ac ± 67.26
ASC 2015/2016 (n = 14)	5.21 ^ab ± 2.50	5.40 ± 2.00	0.32 ± 0.17	0.11 ± 0.04	0.05 ^a ± 0.02	342.68 ± 102.44	15.90 ^a ± 11.32	7.67 ^a ± 8.36	2.72 ^ab ± 0.90	0.91 ^b ± 0.27	376.97 ± 103.64	322.37 ^bc ± 79.12
COR 2015/2016 (n = 14)	4.69 ^ab ± 1.95	5.13 ± 1.98	0.34 ± 0.21	0.12 ± 0.05	0.04 ^a ± 0.03	362.39 ± 116.37	5.49 ^b ± 1.58	7.19 ^a ± 6.71	3.42 ^bc ± 0.96	1.23 ^c ± 0.25	390.16 ± 121.19	294.58 ^bc ± 72.97
MIG 2015/2016 (n = 15)	7.48 ^a ± 3.86	6.53 ± 3.17	0.51 ± 0.36	0.09 ± 0.04	0.04 ^a ± 0.02	312.85 ± 109.54	8.20 ^b ± 2.31	9.29 ^a ± 3.89	2.32 ^ab ± 0.58	0.54 ^a ± 0.22	348.63 ± 112.83	349.98 ^b ± 60.85
MOG 2015/2016 (n = 17)	3.58 ^b ± 3.99	6.13 ± 3.36	0.40 ± 0.19	0.15 ± 0.09	0.07 ^b ± 0.03	289.19 ± 117.74	8.88 ^b ± 4.37	7.06 ^a ± 5.57	1.76 ^a ± 0.88	0.93 ^b ± 0.29	318.30 ± 123.26	219.01 ^a ± 53.43
RAG 2015/2016 (n = 19)	4.92 ^ab ± 2.72	8.29 ± 6.26	0.40 ± 0.22	0.10 ± 0.08	0.06 ^ab ± 0.03	379.05 ± 148.59	5.19 ^b ± 2.12	33.14 ^b ± 11.52	3.70 ^c ± 1.94	1.16 ^bc ± 0.34	434.21 ± 151.18	260.62 ^ac ± 68.88

Statistical analysis compares the five different cultivars in the same year (2015 and 2016) and in the two years 2015/2016 (significant differences at p < 0.05 are highlighted by different letters). The same cultivar is also compared in the two different years and significant differences at p < 0.05 are highlighted by different symbols.