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. 2020 Mar 18;75(2):298–304. doi: 10.1007/s11130-020-00808-0

Table 3.

Content of mineral compounds in potatoes

Compound	Sample
Compound	Raw	Boiling	Steaming (steel pot)	Steaming (combi oven)	Microwaving	Grilling
Copper (μg/g DW)	3.58 ± 0.11^a	3.77 ± 0.05^ab	3.81 ± 0.23^ab	3.81 ± 0.07^ab	3.96 ± 0.14^bc	4.08 ± 0.17^c
Manganese (μg/g DW)	3.59 ± 0.02^cd	3.02 ± 0.10^ab	3.14 ± 0.06^b	3.44 ± 0.21^c	3.52 ± 0.04^c	3.54 ± 0.15^c
Iron (μg/g DW)	10.16 ± 0.13^a	10.47 ± 0.26^a	10.29 ± 0.18^a	11.46 ± 0.34^b	12.92 ± 0.22^d	12.41 ± 0.13^c
Zinc (μg/g DW)	11.77 ± 0.37^b	10.81 ± 0.12^a	11.20 ± 0.24^ac	11.40 ± 0.31^bc	13.41 ± 0.39^d	12.91 ± 0.15^d
Magnesium (μg/g DW)	879.8 ± 14.2^bc	802.8 ± 8.7^a	861.2 ± 10.9^b	895.2 ± 15.5^c	901.6 ± 2.4^c	897.9 ± 21.1^c
Calcium (μg/g DW)	212.1 ± 3.2^a	230.6 ± 5.5^b	232.0 ± 5.4^b	241.4 ± 7.9^b	292.1 ± 5.1^d	271.2 ± 8.8^c
Sodium (μg/g DW)	26.75 ± 0.35^a	26.36 ± 0.53^a	26.24 ± 0.39^a	27.02 ± 0.62^ab	28.02 ± 0.49^c	27.63 ± 0.38^bc
Potassium (mg/g DW)	20.20 ± 0.16^c	19.20 ± 0.20^a	19.81 ± 0.25^b	21.38 ± 0.31^d	21.97 ± 0.12^e	22.17 ± 0.19^e
Phosphorus (mg/g DW)	2.20 ± 0.02^a	2.18 ± 0.01^a	2.27 ± 0.04^b	2.37 ± 0.02^c	2.52 ± 0.01^d	2.50 ± 0.05^d

DW – Dry weight

Results are reported as mean value ± standard deviation

Means in the same row with different letters are significantly different (P < 0.05)