Chemical modification, antioxidant and α-amylase inhibitory activities of corn silk polysaccharides

被引：225

作者：

Chen, Shuhan ^{[1
]}

Chen, Haixia ^{[1
]}

Tian, Jingge ^{[1
]}

Wang, Yanwei ^{[1
]}

Xing, Lisha ^{[1
]}

Wang, Jia ^{[1
]}

机构：

[1] Tianjin Univ, Sch Pharmaceut Sci & Technol, Tianjin Key Lab Modern Drug Delivery & High Effic, Tianjin 300072, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2013年 / 98卷 / 01期

关键词：

Corn silk polysaccharides; Chemical modification; Chemical characterization; Antioxidant and alpha-amylase inhibitory properties; ZEA-MAYS L; LACQUER POLYSACCHARIDE; EXTRACTS; MECHANISMS; CARBOXYMETHYLATION; CONFORMATION; GLUCOSIDASE; FRACTIONS; MUSHROOM; STIGMA;

D O I：

10.1016/j.carbpol.2013.06.011

中图分类号：

O69 [应用化学];

学科分类号：

070301 [无机化学];

摘要：

Water-soluble corn silk polysaccharides (CSPS) were chemically modified to obtain their sulfated, acetylated and carboxymethylated derivatives. Chemical characterization and bioactivities of CSPS and its derivatives were comparatively investigated by chemical methods, gas chromatography, gel filtration chromatography, scanning electron microscope, infrared spectroscopy and circular dichroism spectroscopy, scavenging DPPH free radical assay, scavenging hydroxyl radical assay, ferric reducing power assay, lipid peroxidation inhibition assay and alpha-amylase activity inhibitory assay, respectively. Among the three derivatives, carboxylmethylated polysaccharide (C-CSPS) demonstrated higher solubility, narrower molecular weight distribution, lower intrinsic viscosity, a hyperbranched conformation, significantly higher antioxidant and alpha-amylase inhibitory abilities compared with the native polysaccharide and other derivatives. C-CSPS might be used as a novel nutraceutical agent for human consumption. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：428 / 437

页数：10

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