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首页> 外文期刊>International Journal of Biological Macromolecules: Structure, Function and Interactions >Synthesis, characterization and antioxidant activity of selenium modified polysaccharides from Hohenbuehelia serotina
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Synthesis, characterization and antioxidant activity of selenium modified polysaccharides from Hohenbuehelia serotina

机译:Hohenbuehelia Serotina的硒改性多糖的合成,表征和抗氧化活性

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In order to search the optimal pathway to supplement organic selenium and solve the water-solubility of polysaccharides, selenylation was preformed to modify the polysaccharides isolated from Hohenbuehelia serotina (Se-HSP). The physicochemical properties and morphology of Se-HSP were investigated by UV-visible spectrometry, Fourier transform infrared spectrometry (FT-IR), X-ray diffraction spectroscopy (XRD), Circular dichroism spectroscopy (CD), scanning electron microscope (SEM) and atomic force microscope (AFM), respectively. The results suggested that selenium was successfully bound to HSP by esterification reaction. Se-HSP was a noncrystalline substance with the lump structure and smooth and dense surface. The height of Se-HSP was distributed in the range of 35-106 nm. In vitro antioxidant determinations found that Se-HSP possessed the similar/more significant scavenging capacities on ABTS, hydroxyl and superoxide anion radicals as/than the ability of HSP. The present data indicated that selenylation modification could not change the antioxidant activities of HSP in vitro, which also suggested that Se-HSP could serve as a potential antioxidant agent to be used as selenium-complementary nutraceutical. (C) 2018 Elsevier B.V. All rights reserved.
机译:为了搜索补充有机硒的最佳途径并解决多糖的水溶性,预先成形以改变从Hohenbuehelia serotina(Se-Hsp)中分离的多糖。通过UV可见光光谱法,傅里叶变换红外光谱(FT-IR),X射线衍射光谱(XRD),圆形二色光谱(CD),扫描电子显微镜(SEM),扫描电子显微镜(SEM),研究了Se-HSP的物理化学性质和形态。分别原子力显微镜(AFM)。结果表明,酯化反应成功地与HSP成功结合。 SE-HSP是一种非晶体物质,具有块状结构和光滑和致密的表面。 SE-HSP的高度分布在35-106nm的范围内。体外抗氧化测定发现,SE-HSP在ABTS,羟基和超氧化物阴离子中具有类似/更明显的清除能力,如HSP的能力。本数据表明,亚苯基化改性不能改变体外HSP的抗氧化活性,这也表明SE-HSP可以用作潜在的抗氧化剂作为硒互补的营养糖。 (c)2018年elestvier b.v.保留所有权利。

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