Table 6.

Content of tocopherols (mg/kg, fw) in Sicilian strawberry trees from different localities. Data are expressed as mean ± standard deviation of n = 3 samples per location, where every sample was analyzed in triplicate. S1: sample from Castelbuono (Palermo, Italy); S2: sample from Castanea delle Furie (Messina, Italy); S3: sample from Caltagirone (Catania, Italy); S4: sample from Pedara (Catania, Italy). <LOD: lower than the limit of detection (0.01 mg/kg).

Sample	α-Tocopherol	β-Tocopherol	γ-Tocopherol	δ-Tocopherol	Total
S1	6.42 ± 0.32 a	0.08 ± 0.01 a	2.05 ± 0.18 a	<LOD	8.55 ± 0.50 a
S2	6.23 ± 0.34 a	0.12 ± 0.02 a	2.29 ± 0.17 a	<LOD	8.65 ± 0.36 a
S3	7.64 ± 0.33 b	0.35 ± 0.06 b	3.20 ± 0.16 b	<LOD	11.19 ± 0.32 b
S4	8.58 ± 0.39 c	0.28 ± 0.08 a	2.87 ± 0.13 b	<LOD	11.73 ± 0.33 b

a–c: different superscript letters in the same column indicate significantly different values for a given parameter (p < 0.05 by post hoc Kruskal-Wallis test); same superscript letters in the same column indicate not significantly different values (p > 0.05 by post hoc Kruskal-Wallis test).