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
收藏
页码：10 / 18
页数：9
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