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东北枸杞多糖分离纯化及鉴定
引用本文:常建红,刘延吉,田晓艳,王玉新,王晓东. 东北枸杞多糖分离纯化及鉴定[J]. 沈阳农业大学学报, 2009, 40(5)
作者姓名:常建红  刘延吉  田晓艳  王玉新  王晓东
作者单位:1. 沈阳农业大学,生物科技学院,沈阳,110161
2. 辽宁石油化工大学,环境与生物工程学院,辽宁,抚顺,113001
3. 辽宁省分析科学研究院,沈阳,110015
摘    要:研究了东北枸杞多糖的提取、分离纯化及其组分和结构的鉴定,结果表明:枸杞多糖水提的最佳条件为提取温度100℃,pH值11,料液比1:20,浸提2h;通过DEAE-SephadexA-50柱层析得到纯度较高的LBP-4,薄层分析LBP-4主要是由鼠李糖、木糖、葡萄糖、甘露糖和半乳糖醛酸组成.红外光谱和刚果红实验分析LBP-4具有糖类的特征吸收峰,是多种单糖通过α糖苷键及β糖苷键连接组成的杂多糖,不具有三股螺旋结构.

关 键 词:东北枸杞  多糖  分离  纯化  鉴定

Isolation,Purification and Identification of Lycium barbarum Polysaccharide in Northeast Area
CHANG Jian-hong,LIU Yan-ji,TIAN Xiao-yan,WANG Yu-xin,WANG Xiao-dong. Isolation,Purification and Identification of Lycium barbarum Polysaccharide in Northeast Area[J]. Journal of Shenyang Aricultural University, 2009, 40(5)
Authors:CHANG Jian-hong  LIU Yan-ji  TIAN Xiao-yan  WANG Yu-xin  WANG Xiao-dong
Abstract:Isolation, purification and identification of Lycium barbarum polysaccharide in northeasarea were studied in this paper.The result showed that the optimum extraction technology of LBP was the extraction temperature 100℃,pH=11, ratio of material to water 1:20, the extraction time 2h. DEAE-SephadexA-50 purification could obtain high purity LBP-4. The analysis of TLC indicated that LBP-4 was mainly made up of Xyl., Man., Glu. and galactose acid. IR spectrum and Congo red analysis showed that LBP-4 possessed the characteristics of carbohydrate absorption peak, which is a eomplex polysaccharides composed of sugars linking through ot-glucoside lindage and β glucoside without three spiral structure.
Keywords:Lycium barbarum in northeast  polysaecharide  Isolation  purification  identification
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