Abstract
The region of Warmia and Mazury is characterized by the special diversity and richness of its natural environment, including large forest complexes, where wild mushrooms are commonly collected and consumed. This study aimed to examine the differences in mineral content (calcium, magnesium, sodium, potassium, iron, zinc, copper, manganese) of three species of mushrooms collected in north-eastern Poland. The research material consisted of dried samples of king bolete (Boletus edulis), bay bolete (Boletus badius), and chanterelle (Cantharellus cibarius) collected in the region of Warmia and Mazury. The content of the above-mentioned elements in mushroom fruit bodies was determined using the flame atomic absorption spectrometry (acetylene-air flame) and the emission technique (acetylene-air flame) for sodium and potassium. For the majority of micro- and macroelements, the studies confirmed the presence of significant differences in their content, depending on the species of fungi. The studied mushrooms cover a significant percentage of daily demand for many of the minerals. This concerns mainly copper, zinc, and potassium, although none of the species was a good source of calcium and sodium. Among the analyzed mushrooms, chanterelle is the best source of most minerals.
Highlights
The province of Warmia and Mazury is one of the least degraded areas in Poland, taking into account the natural environment
The highest Fe content was determined for C. cibarius (58.9 mg/kg d.w.), followed by B. edulis (48.9 mg/kg d.w.)
The results obtained in this study, regarding eight selected minerals contained in Boletus edulis, Boletus badius and Cantharellus cibarius from the Warmia and Mazury region do not differ much from the results presented by other authors [27,28,29,30,31,32,33,34]
Summary
The province of Warmia and Mazury is one of the least degraded areas in Poland, taking into account the natural environment. The whole province is located within the so-called “green lungs”, which covers the cleanest regions of the country. Forests are the natural wealth of the Warmia and Mazury region. The properties of woods (appropriate substrate, age of stands) favor the occurrence of undergrowth, e.g., mushrooms. According to the data from the Statistical Yearbook of Forestry, in 2018, the purchase of mushrooms amounted to 122 tons, which ranked the region 6th place in the country in terms of the amount of fungal raw material obtained [1,2].
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