Antioxidant activity of xanthan oligosaccharides prepared by different degradation methods

被引：67

作者：

Xiong, Xiaoying ^{[1
]}

Li, Ming ^{[1
]}

Xie, Jing ^{[1
]}

Jin, Qi ^{[1
]}

Xue, Bin ^{[1
]}

Sun, Tao ^{[1
,2
]}

机构：

[1] Shanghai Ocean Univ, Coll Food Sci & Technol, Shanghai 201306, Peoples R China

[2] Shanghai Ocean Univ, Inst Marine Sci, Shanghai 201306, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2013年 / 92卷 / 02期

关键词：

Xanthan gum; Oxidative degradation; Antioxidant activity; Pyruvate acid; SCAVENGING ACTIVITY; POLYSACCHARIDE; EXTRACTS; PYRUVATE; TEA; GUM;

D O I：

10.1016/j.carbpol.2012.10.069

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Two kinds of water soluble xanthan oligosaccharides (XGOS-A and XGOS-B) with similar molecular weights were prepared by oxidative degradation of xanthan gum (XG) under acidic and alkaline condition, respectively. Antioxidant activity of XGOS-A and XGOS-B was evaluated by the scavenging of superoxide anion radical (O-center dot(2)-), hydroxyl radical ((OH)-O-center dot), 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical, hydrogen peroxide (H2O2), determination of ferrous ion chelating activity and reducing power. All the above antioxidant evaluation indicated that XGOS-A and XGOS-B exhibited good antioxidant activity in a concentration-dependent manner. The XGOS-B exhibited better antioxidant activity than XGOS-A. These results may be related to the different structure properties of XGOS-A and XGOS-B especially the different contents of pyruvate acid and reducing sugar. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1166 / 1171

页数：6

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