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Effects of drying methods on the antioxidant activities of polysaccharides extracted from Ganoderma lucidum

被引：233
作者：
Fan, Liuping [1 ]
Li, Jinwei [1 ]
Deng, Kequan [1 ]
Ai, Lianzhong [2 ]
机构：
[1] Jiangnan Univ, State Key Lab Food Sci & Technol, Sch Food Sci & Technol, Wuxi 214122, Peoples R China
[2] Bright Dairy & Food Co Ltd, State Key Lab Dairy Biotechnol, Ctr Technol, Shanghai 200436, Peoples R China
来源：
CARBOHYDRATE POLYMERS | 2012年 / 87卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Ganoderrna lucidum; Polysaccharides; Antioxidant activity; Drying methods; RADICAL SCAVENGING ACTIVITY; FRUITING BODIES; ANTITUMOR; PURIFICATION; FRACTIONS; SULFATES; SUGARS;
D O I：
10.1016/j.carbpol.2011.10.018
中图分类号：
O69 [应用化学];
学科分类号：
070301 [无机化学];
摘要：
Three polysaccharides (GLP-H, GLP-V and GLP-F) were obtained from Ganoderma lucidum by hot air drying, vacuum drying and vacuum freeze drying, respectively. Their chemical compositions were determined, and antioxidant activities were investigated on the basis of superoxide radical, hydroxyl radical, reducing power, DPPH free radical and Ferric-reducing antioxidant power (FRAP) assay. The results showed that three polysaccharides exhibited antioxidant activities in a concentration-dependent manner. Among three polysaccharides, GLP-F and GLP-V had the higher scavenging effects on hydroxyl radicals, superoxide radicals, DPPH free radical, and stronger reducing power than GLP-H. GLP-F showed the stronger antioxidant capacity than GLP-V and GLP-H in FRAP system. GLP-H and GLP-V showed an almost identical pattern in FRAP system (p>0.05). However, GLP-V showed the stronger radical scavenging activities than GLP-H. Available data obtained in in vitro models suggested that vacuum freeze drying was an appropriate and effective treatment for obtaining the polysaccharide from G. lucidum. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1849 / 1854
页数：6
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