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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/IntJMedMushrooms.v17.i3.60
pages 267-276

Chemical Composition and Immunomodulatory Activity of Mycelia of the Hairy Bracket Mushroom, Trametes hirsuta (Higher Basidiomycetes)

Rongxia Ma
Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences; Key Laboratory of Functional Foods, Ministry of Agriculture; Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
Rongling Yang
Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences; Key Laboratory of Functional Foods, Ministry of Agriculture; Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
Xueming Liu
Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences; Key Laboratory of Functional Foods, Ministry of Agriculture; Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
Zhiyi Chen
Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences; Key Laboratory of Functional Foods, Ministry of Agriculture; Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
Chunying Yang
Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences; Key Laboratory of Functional Foods, Ministry of Agriculture; Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
Siyuan Wang
Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences; Key Laboratory of Functional Foods, Ministry of Agriculture; Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China

SINOPSIS

Trametes hirsuta is a medicinal mushroom that produces laccase. Its mycelium is a by-product when this species is used for laccase production. Aiming to develop its potential medicinal value, we investigated the chemical composition and immunomodulatory activity of T. hirsuta mycelia (THM). Dried THM contained 26.06% protein, 1.15% fat, 57.87% carbohydrates, and 5.47% ash. Sixteen free amino acids (2.63% total content) and 6 5'-nucleotides (adenosine 5'-monophosphate, cytidine 5'-monophosphate, guanosine 5'-monophosphate, uridine 5'-monophosphate, xanthosine 5'-monophosphate, and inosine 5'-monophosphate) constituting 0.275% were detected. Dominant sugars and polyols were fructose (2.47%), mannitol (2.03%), and glucose (1.8%); trehalose and arabinose contents were less than 0.10%. Evaluation of immunomodulatory activity in mice showed that THM could improve macrophage phagocytic function and serum hemolysin concentrations, but only the low-dose group significantly enhanced the natural killer cell activity and increased the spleen index, and only the middle-dose group remarkably increased the thymus index. Therefore, T. hirsuta mycelia could enhance immune function in mice and have immunomodulatory activity.


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