Abstract

The antioxidant activity of polysaccharides from Auricularia auricular (Black fungus, BF), Lentinula edodes (Shiitake, SH), Flammulina velutipes (Velvet foot, VT), Coprinus comatus (Shaggy mane, SM), Agrocybe cylindracea (Columnar agrocybe, CA), Cordyceps sinensis (China cordyceps, CC), Coriolus versicolor (Polystictus versicolor, PV), Grifola frondosa (Maitake, MA) and Pleurotus ostreatus (Oyster mushroom, OM) was evaluated by scavenging superoxide anion radical, hydroxyl radical, DPPH·, reducing power and chelating metal ions. The results show some polysaccharides exhibited concentration-dependent effects on scavenging DPPH·, superoxide anion radical and hydroxyl radical and reducing power. The polysaccharides from BF showed the highest scavenging activity against superoxide anion radical. Polysaccharide from VF and BF showed the highest scavenging activity against hydroxyl radical. VF and PV showed the highest scavenging activity against DPPH·. SH showed the highest activity of reducing power. VF showed the highest chelating ability. The results demonstrate the fungus polysaccharides possess various antioxidant potentials.

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