title: In vitro antioxidant activities of sulfated polysaccharide fractions extracted from Corallina officinalis.
abstract: Sulfated polysaccharides (F1, F2) from seaweed Corallina officinalis were isolated through anion-exchange column chromatography. Their chemical characteristics were determined by GC, HPLC, FT-IR and UV spectra. F1 and F2 contained only two monosaccharides, namely galactose and xylose. The antioxidant activities of F1, F2 and the de-sulfated polysaccharides (DF-1, DF-2) in vitro were investigated, including hydroxyl radicals scavenging effect, superoxide radical scavenging capacity, DPPH radical activity and reducing power. As expected, antioxidant assay showed that the two sulfated polysaccharide fractions (F1, F2) possessed considerable antioxidant properties and had more excellent abilities than de-sulfated polysaccharides (DF-1, DF-2).
authors: School of Life Science, Anhui University, Feixi Street, Hefei 230039, PR China.
authors: Yuling
authors: Y
authors: Yang
authors: Dan
authors: D
authors: Liu
authors: Jun
authors: J
authors: Wu
authors: Yan
authors: Y
authors: Chen
authors: Shusheng
authors: S
authors: Wang
mesh_terms: D001713:Biphenyl Compounds / Q000037:antagonists & inhibitors / Q000378:metabolism; D002626:Chemistry, Pharmaceutical / Q000379:methods*; D002851:Chromatography, High Pressure Liquid; D002852:Chromatography, Ion Exchange; D005519:Food Preservation / Q000379:methods*; D016166:Free Radical Scavengers / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D005609:Free Radicals / Q000037:antagonists & inhibitors / Q000378:metabolism; D005690:Galactose / Q000737:chemistry / Q000378:metabolism; D006801:Humans; D017665:Hydroxyl Radical / Q000037:antagonists & inhibitors / Q000378:metabolism; D010084:Oxidation-Reduction / Q000187:drug effects; D010851:Picrates / Q000037:antagonists & inhibitors / Q000378:metabolism; D011134:Polysaccharides / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D000461:Rhodophyta / Q000737:chemistry*; D012624:Seaweed / Q000737:chemistry*; D012996:Solutions; D017550:Spectroscopy, Fourier Transform Infrared; D013431:Sulfates / Q000737:chemistry / Q000378:metabolism*; D013481:Superoxides / Q000037:antagonists & inhibitors / Q000378:metabolism; D014994:Xylose / Q000737:chemistry / Q000378:metabolism
chemical_list: D001713:Biphenyl Compounds; D016166:Free Radical Scavengers; D005609:Free Radicals; D010851:Picrates; D011134:Polysaccharides; D012996:Solutions; D013431:Sulfates; D013481:Superoxides; D017665:Hydroxyl Radical; D014994:Xylose; C004931:1,1-diphenyl-2-picrylhydrazyl; D005690:Galactose