Comparison of multielemental composition of Polish and Chinese mushrooms (Ganoderma spp.)

Abstract

This study analyzed the content of 62 elements in 10 Ganoderma species cultivated in China and Poland and wild growing in Polish forests. Thirty elements (25 micro- and 5 macro-elements) were identified in all species, whereas 32 trace elements only in a very limited number of samples. The highest contents of major elements were observed in cultivated G. pfeifferi and G. sinense originated from Poland and China, respectively. Among wild growing species, G. applanatum showed the highest content of In, Mg, and P, G. pfeifferi of Te, both G. pfeifferi and G. resinaceum of K. Principal component analysis (PCA) showed that among tested group of mushroom species, fruit bodies of wild growing G. resinaceum and cultivated G. pfeifferi were characterized by a higher level of all elements jointly than the other analyzed Ganoderma species. The greatest similarity was observed for G. atrum, G. capense, G. carnosum and cultivated G. lucidum as regards accumulation of all elements. Significant differences between cultivated and wild growing G. lucidum were observed only for K and In, whereas in G. pfeifferi differences were found for Ba, Cd, Eu, Ge, Ni, Rh, Sr, Te, Zn, Mg, and Na. Significant differences in Ca, P, and Pr contents were determined for both the species.