Exploration of Foods and Foodomics

Table 3

Levels of metals and metalloids (µg/g) in Nigerian medicinal plants

Elements	BC	AG	AR	TO	SL	IA	PL
Cu	2.516 ± 0.121^a	2.794 ± 0.249^a	75.03 ± 0.202^b	3.626 ± 0.49^a	3.065 ± 0.136^a	3.159 ± 0.321^a	150
Cd	0.002 ± 0.000^a	0.001 ± 0.000^a	0.008 ± 0.001^b	0.003 ± 0.000^a	0.008 ± 0.000^b	0.178 ± 0.000^c	0.3
Pb	0.254 ± 0.001^c	0.033 ± 0.002^a	0.379 ± 0.034^d	0.084 ± 0.004^b	0.07 ± 0.000^b	0.912 ± 0.118^e	10
Zn	7.883 ± 0.119^a	8.997 ± 0.314^a	9.715 ± 0.056^a	10.528 ± 0.823^a	13.709 ± 1.499^b	25.187 ± 0.063^c	50
Mn	21.636 ± 3.47^d	2.016 ± 0.062^b	3.397 ± 0.164^b	0.502 ± 0.013^a	7.118 ± 0.033^c	2.098 ± 0.055^b	2
Co	0.158 ± 0.005^c	0.026 ± 0.002^a	0.199 ± 0.002^c	0.033 ± 0.000^a	0.093 ± 0.018^b	0.12 ± 0.006^b	0.48
Ni	1.19 ± 0.029^c	0.298 ± 0.017^b	0.748 ± 0.02^bc	0.369 ± 0.18^b	0.416 ± 0.091^b	0.12 ± 0.006^a	1.5
As	0.166 ± 0.024^b	0.122 ± 0.001^a	0.267 ± 0.019^b	0.206 ± 0.036^a	0.109 ± 0.001^a	0.138 ± 0.006^a	10
Fe	7.746 ± 0.1585^a	7.298 ± 0.024^a	33.53 ± 0.427^b	17.2 ± 1.46^a	14.58 ± 5.694^a	99.68 ± 4.044^c	20

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Data with the same superscripts in the same row are not statistically different from one another. Values are mean ± SD of three replicates. The SD values which are less than 0.0001 were written as 0.000 in this table. PL: permissible limits