Polysaccharide fractions extracted from Lactarius quieticolor mushroom exhibit immune stimulatory activities on macrophages

被引：4

作者：

Zavadinack, Matheus ^{[1
]}

Bellan, Daniel de Lima ^{[2
]}

Bonaldi, Maria Paula Fernandes ^{[1
]}

Milhorini, Shayane da Silva ^{[1
]}

Cordeiro, Lucimara M. C. ^{[1
]}

Simas, Fernanda Fogagnoli ^{[2
]}

Iacomini, Marcello ^{[1
]}

机构：

[1] Univ Fed Parana, Dept Biochem & Mol Biol, BR-81531980 Curitiba, PR, Brazil

[2] Univ Fed Parana, Dept Cell Biol, BR-81531980 Curitiba, PR, Brazil

来源：

FOOD RESEARCH INTERNATIONAL | 2024年 / 197卷

关键词：

Mushrooms; Lactarius quieticolor; Polysaccharides; beta-D-glucans; alpha-D-galactans; Immune stimulatory; STRUCTURAL-CHARACTERIZATION; EDIBLE MUSHROOM; NITRIC-OXIDE; BETA-GLUCANS; MODEL; ACIDS;

D O I：

10.1016/j.foodres.2024.115205

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Several beneficial properties have already been observed for mushrooms extracts containing polysaccharides, one of the main components present in these fungi. In order to obtain these extracts and clarify their composition, different extraction and characterization methods can be applied, contributing to understanding its biological effects. In this research, we evaluated three different crude fractions obtained through cold water, hot water, and alkaline solution, from the mushroom Lactarius quieticolor. Each sample was totally characterized by NMR (1H, 13 C, HSQC-DEPT, COSY), GC-MS (monosaccharide composition and methylation analysis) and HPSEC (homogeneity and relative Mw). The results showed a mixture of different polysaccharides, including D-galactans and D-glucans in each fraction. All the extracts presented immunostimulant activity in murine RAW 264.7 macrophages, stimulating NO secretion and inducing morphological alterations that were typical of activated cells. These effects were more intense for alkaline fraction (EA), which have higher amounts of mannose and 3,6-di-O- substituted-Glcp units. The results obtained show that crude fractions can potentially stimulate immune cells, which indicates that the consumption of this edible mushroom can bring great benefits to health, being considered an excellent food due to its good biological properties.

引用

页数：11

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