No abstract

The paper gives description of the growth conditions on the output of valuable components from the fungus chaga. The samples of chaga represent two different regions of Eurasia – Western Siberia and the Czech Republic. The results of the research proved that the yield of melanin in water extracts from the chaga grown in Western Siberia was 1.7% higher than that of the Czech analogue. Consequently, the authors concluded that the harsher conditions of growth, which cause a slow growth of the fungus, lead to a greater accumulation of useful substances.