Structural characterization, antioxidant and immunomodulatory activities of a neutral polysaccharide from Cordyceps militaris cultivated on hull-less barley

•A polysaccharide was isolated from Cordyceps militaris cultivated on hull-less barley.•The heteropolysaccharide had a backbone of (1→2)-α-D-Manp.•The heteropolysaccharide was mainly branched at O-6 position by (1 → 2)-β-D-Galf.•The heteropolysaccharide had antioxidant and immunoregulation potential...

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