. 2017 Nov 4;55(1):42–51. doi: 10.1007/s13197-017-2761-y

Table 2.

Mineral composition (macro elements, mg/100 g) of yam chips, flakes and flour from selected markets in South West Nigeria

Samples	P	Mg	Ca	Na	K	Ca/P ratio
Yam chips
Saki 1	96.8 ± 22.3^ab	36.0 ± 3.7^ab	25.9 ± 9.8^ab	10.7 ± 7.8^a	786.0 ± 198.8^a	1:3.7
Saki 2	104.7 ± 34.2^ab	31.1 ± 4.0^a	16.1 ± 7.4^a	6.5 ± 6.1^a	788.5 ± 175.5^a	1:6.5
Mile12 1	100.4 ± 9.2^ab	33.3 ± 3.4^a	18.8 ± 3.5^ab	6.9 ± 6.0^a	777.9 ± 67^a	1:5.3
Mile12 2	81.1 ± 10.8^ab	33.1 ± 3.1^a	18.0 ± 6.4^a	7.7 ± 8.7^a	717.1 ± 94.6^a	1.4.5
Bodija 1	87.9 ± 8.8^ab	33.4 ± 3.0^a	17.5 ± 8.0^a	8.2 ± 7.3^a	756.0 ± 89.5^a	1:2.6
Bodija 2	83.1 ± 25.2^ab	33.9 ± 3.6^a	22.3 ± 7.5^ab	11.4 ± 9.9^a	720.2 ± 226.5^a	1:3.7
Yam flakes
Mile12 1	73.1 ± 6.7^a	29.8 ± 0.5^a	34.3 ± 4.3^abc	4.4 ± 6.4^a	636.5 ± 54.9^a	1:2.1
Mile12 2	77.7 ± 16.6^a	31.0 ± 4.7^a	40.0 ± 9.2^bcd	11.0 ± 7.7^a	641.8 ± 82.6^a	1:1.9
Bodija 1	85.0 ± 11.5^ab	33.9 ± 2.0^a	33.2 ± 15.5^abc	13.5 ± 11.8^a	750.3 ± 132.8^a	1:2.5
Bodija 2	84.7 ± 6.2^ab	30.9 ± 0.8^a	32.1 ± 9.4^abc	22.2 ± 17.8^a	656.1 ± 32.1^a	1:2.6
Yam flour
Mile12 1	76.9 ± 17.5^a	56.8 ± 17.5^c	54.9 ± 14.3^d	8.4 ± 6.7^a	810.7 ± 256.6^a	1:1.4
Mile12 2	85.1 ± 18.3^ab	58.7 ± 9.8^c	74.1 ± 26.2^e	15.6 ± 11.9^a	879.4 ± 175.4^a	1:1.2
Lafenwa 1	74.2 ± 8.5^a	48.0 ± 6.0^c	39.8 ± 11.2^bcd	9.0 ± 7.3^a	683.5 ± 89.4^a	1:1.9
Lafenwa 2	80.9 ± 25.6^ab	54.8 ± 14.9^c	51.7 ± 8.4 ^cd	16.4 ± 14.3^a	605.6 ± 199.9^a	1:1.6
Supermarket 1	105.0 ± 10.4^ab	37.6 ± 5.5^ab	18.1 ± 6.7^a	8.7 ± 9.7^a	843.9 ± 92.4^a	1:5.8
Supermarket 2	112.8 ± 10.5^b	37.8 ± 5.3^ab	20.7 ± 8.2^ab	11.8 ± 10.3^a	857.1 ± 103.9^a	1:5.4

Values are mean ± standard deviations of three measurements of samples collected in 3 batches (n = 3). Different superscript letters within columns are significantly different (p ≤ 0.05)