Levels of physiologically active indole derivatives in the fruiting bodies of some edible mushrooms (Basidiomycota) before and after thermal processing |
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Authors: | Bo?ena Muszyńska Katarzyna Su?kowska-Ziaja Agnieszka Wójcik |
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Institution: | Department of Pharmaceutical Botany, Jagiellonian University, Collegium Medicum, Medyczna Street 9, 30-688 Kraków, Poland |
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Abstract: | Indole compounds were found in the fruiting bodies of selected mushroom species both before and after thermal processing. On the basis of HPLC analyses the following indole compounds were detected: l-tryptophan, 5-hydroxytryptophan, 5-methyltryptophan, tryptamine, 5-methyltryptamine, serotonin, indole and melatonin. The compound that was present in the largest amounts in the methanolic extracts from unprocessed mushrooms was 5-hydroxytryptophan in the amount of 7.32 mg/100 g DW in the case of the fruiting bodies of Auricularia polytricha; 15.83 in Suillus bovinus; 22.94 in Macrolepiota procera, and 24.83 in Lentinula edodes. In the methanolic extracts from thermally processed mushrooms the amount of 5-hydroxytryptophan was: 3.52 mg/100 g DW in the case of A. polytricha; 5.65 for Leccinum scabrum and 10.11 for M. procera. In addition, serotonin was found in unprocessed fruiting bodies of two mushroom species: 1.03 mg/100 g DW in L. edodes and 13.99 in L. scabrum, and also in thermally processed mushrooms. |
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