Metal Content of Nutritional and Toxic Value in Different Types of Brazilian Propolis

Table 4

Statistics of metal contents in the raw propolis samples according to color types (n = 18). The K–W test was estimated at a significance level of 0.05.

Statistics	Propolis color	n	As (μg·g^−1)	Pb (μg·g^−1)	Se (μg·g^−1)	Cu (mg·g^−1)	K (mg·g^−1)
Median	Brown	10	<0.048	0.23	0.29	4.23	1.04
	Green	4	<0.048	0.01	0.36	6.90	2.65
	Red	4	<0.048	0.25	<0.04	1.78	0.34
Minimum	Brown		<0.048	<0.006	<0.041	1.44	0.28
	Green		<0.048	<0.006	<0.041	3.58	0.95
	Red		<0.048	0.03	<0.041	1.11	0.23
Maximum	Brown		8.47	0.66	0.39	11.60	4.98
	Green		0.07	0.11	0.54	7.22	3.90
	Red		0.3	0.72	0.01	2.10	0.43