Antioxidant activities of five polysaccharides from Inonotus obliquus

被引：132

作者：

Huang, Sheng-quan ^{[1
]}

Ding, Shaodong ^{[2
]}

Fan, Liuping ^{[2
]}

机构：

[1] S China Univ Technol, Coll Light Ind & Food Sci, Guangzhou 510640, Guangdong, Peoples R China

[2] Jiangnan Univ, State Key Lab Food Sci & Technol, Sch Food Sci & Technol, Wuxi 214122, Peoples R China

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2012年 / 50卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Inonotus obliquus; Polysaccharides; Antioxidant activity; FRACTIONS; PHENOLICS; EXTRACTS;

D O I：

10.1016/j.ijbiomac.2012.03.019

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Five polysaccharides (IOP1b, IOP2a, IOP2c, IOP3a and IOP4) were isolated and purified from Inonotus obliquus by DEAE-Sepharose fast flow and SepharoseCL-6B column chromatography. Their chemical and physical characteristics were determined and antioxidant activities were investigated on the basis of hydroxyl radical assay, superoxide radical assay and ferric-reducing antioxidant power assay. The results showed that five polysaccharides exhibited antioxidant activities, and the higher content of uronic acid and proteinous substances, the stronger antioxidant activities of polysaccharides. Besides, molecular weights of polysaccharides also influence their antioxidant activities. IOP3a and IOP4 showed higher antioxidant properties than IOP1b, IOP2a and IOP2c. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1183 / 1187

页数：5

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