Comparative study of selected toxic elements in propolis and honey
Adam Roman , Beata Madras-Majewska , Ewa Popiela
AbstractThe aim of the study was to determine the extent of the bioaccumulation of the toxic elements: Zn, Cu, Pb, As and Cd, in propolis and multiflower honey collected from the Wroclaw area. Propolis and honey samples were mineralized using the microwave technique at an elevated pressure in the microprocessor station MD-2000 type made by CEM-USA. Quantitative analysis of toxic elements (As, Cd, Cu, Pb and Zn) was performed by a plasma spectrometry method using a Varian ICP-AES apparatus. The sequence of the accumulation level of the studied elements in both bee products was: Zn>>Cu>Pb>As>Cd. The highest concentrations of trace elements were found in propolis. The average concentrations of the examined elements observed in this product were as follows: zinc - 48.1, copper - 6.95, lead - 5.74, arsenic - 0.66 and cadmium - 0.19 mg.kg-1. Significantly lower concentrations of individual elements were indicated in the multiflower honey used in the experiment. An average concentration of zinc, copper, lead, arsenic and cadmium amounted to 3.58, 1.18, 0.98, 0.11, 0.05 mg.kg-1, respectively. Lead was the most problematic element in honey, because its average content exceeded the maximum acceptable concentration over twofold and the lead level was also exceeded in 85% of the studied honey samples. Statistically significant differences (p≤0.01) between consecutive concentrations of elements in propolis and honey were confirmed.
|Journal series||Journal of Apicultural Science, ISSN 1643-4439, e-ISSN 2299-4831, (A 20 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||Accumulation; Arsenic; Cadmium; Copper; Honey; Lead; Propolis; Trace elements; Zinc|
|Publication indicators||= 22; = 23; : 2011 = 0.834; : 2011 = 0.674 (2) - 2013=0.688 (5)|
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