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枸杞多糖的提取分离和其组成研究
引用本文:田丽梅,王旻. 枸杞多糖的提取分离和其组成研究[J]. 中国中药杂志, 2006, 31(19): 1603-1607
作者姓名:田丽梅  王旻
作者单位:中国药科大学,生命科学与技术学院,江苏,南京,210009
基金项目:黑龙江省教育厅科学技术研究项目
摘    要:目的:从枸杞中提取分离枸杞多糖(LBP),并对其组成进行研究。方法:采用水提法提取LBP,用DEAE纤维素柱色谱和凝胶柱色谱进行分离纯化,采用GPC-LLS法、气相色谱法、氨基酸自动分析等方法对其组成进行研究。结果:LBP纯品含有4个级分,LBP的分子质量约为1.524×105,由阿拉伯糖(Ara),鼠李糖(Rha),木糖(Xyl),甘露糖(Man),半乳糖(Gal)和葡萄糖(Glc)6种中性单糖和半乳糖醛酸及18种氨基酸组成,结论:LBP是酸性杂多糖同多肽或蛋白质构成的的复合性多糖,且存在Glycan-O-Ser的糖肽结构。

关 键 词:枸杞多糖  提取  分离  组成
文章编号:1001-5302(2006)19-1603-05
收稿时间:2005-11-05
修稿时间:2005-11-05

Studies on extraction, isolation and composition of Lycium barbarum polysaccharides
TIAN Meili;WANG Min. Studies on extraction, isolation and composition of Lycium barbarum polysaccharides[J]. China Journal of Chinese Materia Medica, 2006, 31(19): 1603-1607
Authors:TIAN Meili  WANG Min
Affiliation:School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China.
Abstract:OBJECTIVE: To study the extraction, isolation and composition of Lycium barbarum polysaccharides (LBP). METHOD: LBP was extracted from L. barbarum with water, isolationed and purified by DEAE ion-exchange cellulose and gel chromatography, and their structural composition was studied by means of SDS-PAGE gel electrophoresis, GC, amino acid automatic analysis, etc. RESULT: Pure LBP has four water solubie polysaccharides, M W was 1.524 x 10(5). LBP was composed of 6 kinds of monosaccharides (Ara, Rha, Xyl, Man, Gal and Glc), galacturonic acid and 18 kinds of amino acids. CONCLUSION: LBP is a kind of complex polysaccharides consisting of acidic heteropolysaccharides and polypeptide or protein, and LBP has Glycan-O-Ser glycopeptide structures.
Keywords:Lycium barbarum polysaccharide   extraction   isolation   composition
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