The aim of the study was to (i) investigate the potential of edible mushroom Boletus badius (Fr.) Fr. to accumulate 53 elements from unpolluted acidic sandy soil and polluted alkaline flotation tailing sites in Poland, (ii) to estimate the low-molecular-weight organic acid (LMWOA) profile and contents in fruit bodies, and finally (iii) to explore the possible relationship between elements and LMWOA content in mushrooms. The content of most elements in fruiting bodies collected from the flotation tailings was significantly higher than in mushrooms from the unpolluted soils. The occurrence of elements determined in fruiting bodies of B. badius has been varied (from 0.01 mg kg-1 for Eu, Lu, and Te up to 18,932 mg kg-1 for K). The results established the high importance of element contents in substrate. Among ten organic acids, nine have been found in wide range: from below 0.01 mg kg-1 for fumaric acid to 14.8 mg g-1 for lactic acid. Lactic and succinic acids were dominant in both areas, and citric acid was also in high content in polluted area. The correlation between element contents and the individual and total content of LMWOAs was confirmed.

Department of Applied Chemistry Faculty of Agriculture University of South Bohemia České Budějovice Czech Republic

Department of Biology and Environmental Protection University of Medical Sciences Poznan Poland

Department of Chemistry Poznan University of Life Sciences Poznań Poland

Department of Vegetable Crops Poznan University of Life Sciences Poznań Poland

Faculty of Chemistry Adam Mickiewicz University in Poznań Poznań Poland

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Bibliometric analysis of European publications between 2001 and 2016 on concentrations of selected elements in mushrooms