Structural characteristics and anticancer/antioxidant activities of a novel polysaccharide from Trichoderma kanganensis

A novel water-soluble polysaccharide designated as TPS was isolated from the fermentation mycelia of Trichoderma kanganensis. TPS had a weight-average molecular mass of 3.074 × 105 Da, and the monosaccharide composition was consisted of Man (45.5%), GlcA (5.5%), Glc (10%), and Gal (39%). The major backbone of TPS was →6-α-d-Galp-1→5-β-d-Manf-1→5,6-β-d-Manf-1→5,6-β-d-Manf-1→, and the side chains are α-d-Glcp-1→4-α-d-Glcp-1→, β-d-Galf-1→, and...