Structural characterization and antioxidant activity of a glucan from Meripilus giganteus

A new water soluble glucan (MGPS), with a molecular weight ∼1.48 × 105 Da, was isolated from the fruit bodies of Meripilus giganteus by hot water extraction followed by purification through dialysis tubing cellulose membrane and sepharose 6B column chromatography. Its structural characteristics were investigated by acid hydrolysis, methylation analysis, Smith degradation and 1D/2D NMR experiments. The monosaccharide composition analysis showed...