. 2021 Sep 9;8:644406. doi: 10.3389/fnut.2021.644406

Table 4.

Mineral contents (mg/kg) of lemon seed oils extracted using different methods.

Element	Sample¹
	RP-170	RP-100	CP	SF
Ca	132.47 ± 5.41^c²	220.45 ± 14.98^b	252.17 ± 13.05^a	25.61 ± 0.15^d
Cu	1.60 ± 0.03^c	0.94 ± 0.01^d	2.38 ± 0.02^a	2.27 ± 0.02^b
Fe	10.51 ± 0.15^d	20.72 ± 0.30^a	19.66 ± 0.21^b	14.83 ± 0.28^c
K	136.72 ± 8.61^c	193.36 ± 11.62^b	225.98 ± 9.972^a	12.14 ± 14.85^d
Mg	64.95 ± 3.56^a	66.29 ± 4.27^a	69.88 ± 3.08^a	3.82 ± 0.35^b
Mn	0.86 ± 0.02^a	0.80 ± 0.02^b	0.90 ± 0.03^a	0.15 ± 0.005^c
Na	8.57 ± 0.64^c	10.35 ± 0.72^b	18.19 ± 0.80^a	19.92 ± 2.85^a
Zn	8.83 ± 0.11^c	11.52 ± 0.12^b	5.19 ± 0.07^d	14.56 ± 0.18^a
Co	0.03 ± 0.003^b	0.05 ± 0.002^a	0.03 ± 0.003^b	0.02 ± 0.002^c
Mo	0.11 ± 0.004^c	0.23 ± 0.02^b	0.47 ± 0.06^a	0.10 ± 0.02^c
Total	364.65	524.71	594.85	93.42

Samples are defined in Table 1.

Quoted values are means ± SD of triplicate measurements. Value followed by different superscripts in the same row are significantly different (p < 0.05).