Food Safety and Risk

Table 2 Variations in trace metal concentration in mg/Kg dried weight of cereal flour

From: Trace metal and aflatoxin concentrations in some processed cereal and root and tuber flour

Sample	As	Cu	Fe	Hg	Pb	Zn
Sorghum flour	<0.01^a	2.77 ± 0.33^a	116.75 ± 0.07^a	<0.01^a	<0.01^a	25.36 ± 0.06^a
Rice flour	<0.01^a	1.09 ± 0.05^b	11.87 ± 0.06^b	<0.01^a	<0.01^a	7.84 ± 0.01^b
Maize four	<0.01^a	0.03 ± 0.01^c	20.44 ± 0.02^c	<0.01^a	<0.01^a	6.04 ± 0.03^c
Millet flour	<0.01^a	3.07 ± 0.01^a	201.40 ± 0.14^d	<0.01^a	0.05 ± 0.01^b	34.36 ± 0.06^d

Results are presented as means ± standard deviation. Superscript to figures in the same column implies significant or insignificant differences at p < 0.05 (ANOVA, Duncan test)

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