Cellulase-assisted extraction and antioxidant activity of polysaccharides from Rhizoma imperata

被引：10

作者：

Jiang, Long-Fa ^{[1
]}

机构：

[1] Huaihai Inst Technol, Sch Marine Sci & Technol, Lianyungang 222005, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2014年 / 108卷

关键词：

Cellulase-assisted extraction; Polysaccharides; Antioxidant activity; ANTIBACTERIAL ACTIVITY;

D O I：

10.1016/j.carbpol.2014.03.020

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this study, the cellulase-assisted extraction and antioxidant activity of the polysaccharides from Rhizoma imperata were investigated. To improve the yield of R. Imperata polysaccharides (RPs), the extraction conditions were optimized as follows: time, 69.48 min; temperature, 45.36 degrees C; pH, 4.58; cellulase amount, 1200 U/g. Under these optimum conditions, the yield of RPs reached 0.67% (w/w), and was higher than that of the traditionally aqueous extraction method. The sugar content in the RPs product reached up to 93.25% (w/w). The RPs product has high antioxidant activity including hydroxyl radical scavenging activity and 2,2-diphenyl-beta-picrylhydrazyl radical scavenging activity at the concentration of 100 mg/mL. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：99 / 102

页数：4

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