Chen, Ziyan published the artcileStructural characterization and antioxidant activity of a new polysaccharide from Bletilla striata fibrous roots, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is Bletilla striata fibrous root polysaccharide antioxidant; Antioxidant activity; Bletilla striata polysaccharide; Fibrous root; Galactomannan.
A new polysaccharide (pFSP) was first isolated from the originally discarded fibrous roots part of Chinese traditional herb, Bletilla striata. PFSP was composed of D-glucose, D-galactose and D-mannose in a molar ratio of 1: 2.03: 3.45 with mol. weight of 9.1 × 104 Da. It could effectively scavenge DPPH and superoxide radicals with inhibition rate of 64.47% and 72.27% at 5.0 mg/mL, higher than that of polysaccharide from Bletilla striata tuber. Structural investigations of the periodate oxidation studies and Smith-degradation as well as the FT-IR spectroscopy were performed, and combined with 1D and 2D NMR spectroscopy, the repeating unit of pFSP contained (1→4)-linked-α-D-Glcp, (1→4)-linked-β-D-Manp and (1→3,6)-linked-β-D-Manp units, together with the branches of (1→6)-linked-β-D-Galp and terminated with (1→)-linked-β-D-Manp residue.
Carbohydrate Polymers published new progress about Antioxidants. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.
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