Isolation, structural characterization and antioxidant activity of a neutral polysaccharide from Sisal waste

被引：83

作者：

Zhang, Xuehong ^{[1
,2
]}

Liu, Lina ^{[1
]}

Lin, Cuiwu ^{[1
]}

机构：

[1] Guangxi Univ, Coll Chem & Chem Engn, Nanning 530004, Guangxi, Peoples R China

[2] Guangxi Teachers Educ Univ, Sch Chem & Life Sci, Nanning 530001, Peoples R China

来源：

FOOD HYDROCOLLOIDS | 2014年 / 39卷

关键词：

Sisal; Polysaccharide; Isolation; Structure; Antioxidant; WATER-SOLUBLE POLYSACCHARIDE; AGAVE-SISALANA; PECTIC POLYSACCHARIDES; IMMUNOLOGICAL ACTIVITY; OXIDATIVE STRESS; EDIBLE MUSHROOM; FEATURES; MONOSACCHARIDES; PURIFICATION; METHYLATION;

D O I：

10.1016/j.foodhyd.2013.12.012

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A new water-soluble polysaccharide (PSP) was isolated from the waste of a Sisal (Agave sisalana) plant after the plant's fibers were extracted. The monosaccharide composition analysis showed that PSP consists of galactose, glucose, mannose, rhamnose, arabinose, and galacturonic acid in a molar ratio of 3.0:2.4:1.4:1.0:0.2:0.2. The structure analysis indicated that the PSP backbone chain comprises 1,4-linked beta-D-Galp; 1,3-linked beta-D-Glcp; 1,3-linked alpha-D-Manp; and 1,2-linked alpha-L-Rhap in a ratio of 3:1:1:1. Some of the Glcp, Manp, and Rhap residues in the backbone chain were branched. The in vitro antioxidant activity assay showed that PSP moderately scavenges hydroxyl and DPPH radicals in a dose-dependent manner. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：10 / 18

页数：9

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