Khan, Bilal Muhammad published the artcilePhysicochemical characterization and antioxidant activity of sulphated polysaccharides derived from Porphyra haitanensis, Application of (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is Porphyra sulfated polysaccharide physicochem property antioxidant; Antioxidant activity; Porphyra haitanensis; Sulphated polysaccharides.
This study was designed to fully characterize Porphyra haitanensis polysaccharides, and to evaluate their antioxidant activity. The polysaccharides primarily contained galactose and 3,6-anhydrogalactose in a molar ratio of 1.2:1.0, resp. and sulfate content about 3.8%. The mol. weight of polysaccharides is 2.5 à 105 Da. SEM and at. force microscopy of the polysaccharides pointed towards an irregular network with more or less hexagonal and a few rectangular pores. The chem. structure was confirmed through Fourier transform IR spectroscopy, and 1D and 2D NMR structural characterization wherein â?4-3,6-anhydro-α-L-galactopyranose-(1 â?3)-β-D-galactopyranose segments. The extracted polysaccharides revealed relatively high 2, 2-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid radical scavenging activity (53.16% at 2 mg/mL), moderate 2,2-diphenyl-1-picrylhydrazyl radical scavenging efficacy (34.63% at 2 mg/mL), and low hydroxyl radical scavenging potential (23.80% at 2 mg/mL). Further purification of these polysaccharides, hence, is advised for their potential role as antioxidants in the food, pharmaceutical and cosmeceutical industry.
International Journal of Biological Macromolecules 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, Application of (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.
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