摘要
以水为溶剂提取苦荞麦多糖类化合物,并以抗坏血酸(VC)和VE为对照品,采用DPPH法探究了苦荞麦多糖提取物对自由基的清除作用。结果表明:苦荞麦多糖具有一定的抗氧化作用,在其浓度为21.764μg/mL时其清除率可达24.85%,显著高于相同浓度下的VC和VE的清除率。认为苦荞麦多糖是一种有前途的天然抗氧化剂。
Aimed at the further exploration of the polysaccharide in Tartary Buckwheat resource, a study of the antioxidant action of polysaccharide in Tartary Buckwheat is made. The activity component is extracted with water. Using the assay system of DPPH, the antioxidant activities of the polysaccharide in Tartary Buck- wheat were studied and compared with those of VE and assorbic acid. Results shows that the extracts of the polysaccharide in Tartary Buckwheat could inhibit lipid peroxidation and scavenge active oxygen free radi- cals. The elimination of the density of the polysaccharide in Tartary Buckwheat （21.764μg/mL） was attained by 24.85%, and remarkable exceeded the same density V~ and assorbic acid. The polysaccharide in Tartary Buckwheat extracts showed strongest inhibitory effect on the antioxidation of superoxidized anionic and lipid peroxidantion.
出处
《六盘水师范学院学报》
2013年第4期37-39,共3页
Journal of Liupanshui Normal University
基金
六盘水市科技计划"贵州西部民族药用植物资源研究与利用重点实验室"(N:52020-2013-1-05-02)
六盘水师范学院院级重点学科(植物学)建设项目
关键词
苦荞麦
多糖
DPPH
自由基
Tartary Buckwheat
polysaccharide
anti-oxidation
free radical
