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International Journal of Medicinal Mushrooms
IF: 1.423 5-Year IF: 1.525 SJR: 0.431 SNIP: 0.716 CiteScore™: 2.6

ISSN Print: 1521-9437
ISSN Online: 1940-4344

International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushrooms.2019030345
pages 393-400

The Impact of Drying of Wild-Growing Mushrooms on the Content and Antioxidant Capacity of Water- Soluble Polysaccharides

Wojciech Radzki
Department of Fruits, Vegetables and Mushrooms Technology, Faculty of Food Science and Biotechnology, University of Life Sciences in Lublin, Lublin, Poland
Aneta Slawinska
Department of Fruits, Vegetables and Mushrooms Technology, Faculty of Food Science and Biotechnology, University of Life Sciences in Lublin, Lublin, Poland
Katarzyna Skrzypczak
Department of Fruits, Vegetables and Mushrooms Technology, Faculty of Food Science and Biotechnology, University of Life Sciences in Lublin, Lublin, Poland
Monika Michalak-Majewska
Department of Fruits, Vegetables and Mushrooms Technology, Faculty of Food Science and Biotechnology, University of Life Sciences in Lublin, Lublin, Poland


Water-soluble polysaccharides (WSPs) were isolated from freeze-dried and hot-air–dried fruiting bodies of five wild-growing edible species: Armillaria mellea, Lactarius deliciosus, Leccinum aurantiacum, Suillus luteus, and Boletus badius. The concentrations of WSPs ranged from 36.3 ± 0.7 mg/g dw to 105.9 ± 3.9 mg/g dw. The method of drying substantially affected the quantity of WSP. The loss of WSP depended on species and varied between ~ 19% and ~ 48%. The extracted WSP contained varied amounts of carbohydrate, protein, and phenolics. The samples exerted antioxidant properties measured with the 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid (ABTS) assay (11.5 ± 2.0 to 38.4 ± 3.6 μmol Trolox/g dw) and the Ferric reducing antioxidant power (FRAP) assay (9.1 ± 1.3 to 40.6 ± 1.4 μmol Trolox/g dw). In most cases, hot-air drying slightly increased the antioxidant potential of WSP.


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