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International Journal of Medicinal Mushrooms
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ISSN Imprimir: 1521-9437
ISSN En Línea: 1940-4344

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International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushr.v13.i5.40
pages 449-454

Indole Compounds in Some Culinary-Medicinal Higher Basidiomycetes from Poland

Bozena Muszynska
Department of Pharmaceutical Botany, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
Katarzyna Sutkowska-Ziaja
Chair and Department of Pharmaceutical Botany, Jagiellonian University, Collegium Medicum, Medyczna Street 9, Krakow, Poland
Halina Ekiert
Department of Pharmaceutical Botany, Jagiellonian University, Collegium Medicum, Kraków, Poland


Methanolic extracts of two species collected from natural habitats in Poland, Boletus edulis and Suillus luteus, and one species from a commercial source, Pleurotus ostreatus, were analyzed for the presence of non-hallucinogenic indole compounds. The contents of indole compounds in these species were both qualitatively and quantitatively diverse, ranging from 0.01 to 34.11 mg/100 g d.w. Two of 11 tested indole compounds, 5-hydroxytryptophan (0.18, 2.08, 1.63 mg/100 g d.w.) and serotonin (6.52, 10.14, 34.11 mg/100 g d.w.), were present in all three species under study. B. edulis and S. luteus were found to contain L-tryptophan (0.39 and 2.61 mg/100g d.w.) and melatonin (0.68 and 0.71 mg/100 g d.w.). Tryptamine was present in two species, i.e., B. edulis (1.17 mg/100 g d.w.) and in P. ostreatus (0.91mg/100 g d.w.), in which slight amounts of indole acetonitrile (0.04 and 0.01 mg/100 g d.w., respectively) were also identified. Indoleacetic acid was a common metabolite for P. ostreatus and S. luteus and its contents amounted to 0.21 and 0.04 mg/100 g d.w., respectively. Indole compounds degradation products kynurenic acid (2.63 mg/100 g d.w.) and kynurenine sulfate were (19.57 mg/100 g d.w.) were observed only in S. luteus.

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