| Popis: |
The aim of this work was to determine the concentrations of rubidium, zinc, iron, copper, strontium and manganese in samples of edible mushrooms and to compare our results with other studies. The literary research contains brief information about mushrooms, soils, metals, used analytical method and research site. During the summer months of 2020 and 2021 twelve samples of seven edible mushroom species were collected from the forest between the former mines of Kladno for the purpose of the practical part. The whole practical part of the bachelor thesis was performed in the laboratory of the Department of Applied Chemistry, Faculty of Agriculture and Technology of the University of South Bohemia in České Budějovice. Measured values were recorded in tables and statistically processed. Through analysis we found out that a parasol mushroom belongs to mushroom species with the highest ability to accumulate metals. Among the analyzed samples we found the highest content of iron (1148 mg/kg), copper (150 mg/kg) and the second highest of manganese (339 mg/kg). On the other hand the least able to cumulate metals between analyzed mushroom species was red cracking bolete which contained the lowest contents of manganese (15 mg/kg) and strontium (1,6 mg/kg). The stink snake is worth mentioning because of its high strontium (10,1 mg/kg) and manganese (643 mg/kg) accumulation. Measured manganese content significantly exceeded the values measured in other analyzed samples. |
