Fruit bodies of 42 species of mushrooms collected in Hutsulshchyna National Nature Park that can be potential sources of rutin were selected. Representatives of various taxonomic, ecological and trophic groups, with fleshy and tough fruit bodies, edible and inedible mushrooms were analyzed for their rutin content. The results showed that rutin is present in all fruit bodies of the studied species of fungi. Thelephora palmata exhibited the highest rutin content (3264 µg/100 g); considerable amount of rutin was also found in carpophores of Ramaria aurea (2944 µg/100 g), Boletus edulis (2560 µg/100 g), Agrocybe vervacti (2240 µg/100 g), Discina ancilis (2240 µg/100 g), Agaricus arvensis (2176 µg/100 g), and Hygrocybe obrussea (2112 µg/100 g). Significantly lower values (ranged from 192 to 576 µg/100 g) were determined in tough and solid fruit bodies of bracket fungi (Schizophyllum commune, Spongipellis spumeus, Daedaleopsis confagosa, Fomes fomentarius, Trametes versicolor, Antrodia ramentaceus, Bjerkandera adusta, Polyporus varius, and Piptoporus betulinus).
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