食品科学 ›› 2011, Vol. 32 ›› Issue (12): 301-304.doi: 10.7506/spkx1002-6630-201112066

• 分析检测 • 上一篇    下一篇

灵芝多糖的分离纯化及结构鉴定

黄静涵,艾斯卡尔;艾拉提,毛健   

  1. 1. 中国医学科学院阜外心血管病医院心血管病研究所
    2.江南大学食品学院,食品科学与技术国家重点实验室
  • 出版日期:2011-06-25 发布日期:2011-06-10

Purification and Structural Identification of a Bioactive Polysaccharide Fraction from Ganoderma lucidum

HUANG Jing-han1,AISIKAER Ailati2,MAO Jian2,*   

  1. 1. Fuwai Hospital and Cardiovascular Institute, Chinese Academy of Medicine Science, Beijing 100037, China;2. State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
  • Online:2011-06-25 Published:2011-06-10

摘要: 运用DEAE-Sephadex A25 离子色谱和Sepharose CL-6B凝胶色谱分离纯化得到一种灵芝多糖组分GLPS1a。高效液相凝胶渗透色谱法(high-performance gel-permeation chromatography,HPGPC)法测得其呈单一峰,重均分子质量为1.8×105D。GLPS1a 经单糖组成分析、红外、核磁共振等手段分析,结果表明单糖组成为阿拉伯糖、半乳糖、葡萄糖和木聚糖,物质的量比率为4:2:10:1。GLPS1a具有一条以β→(1,3)位键合的吡喃葡萄糖主链,同时存在β→(1,3)阿拉伯糖、β-D-(1,4)半乳糖、α-D-(1,2) 木糖和α-D-(1,6) 葡萄糖的分支残基。

关键词: 灵芝多糖, 分离, 纯化, 结构

Abstract: A novel Ganoderma lucidum polysaccharide GLPS1a was purified sequentially by column chromatographies on DEAE-Sephadex A25 and Sepharose CL-6B gel. GLPS1a was eluted as a single symmetrical narrow peak on high-performance gel-permeation chromatography (HPGPC) and the average molgcular weight was 1.8×105 D. Das chromatographic analysis of absolute acid hydrolysate of GLPS1a suggested that its monosaccharide composition was composed of arabinose, galactose, glucose and xylose with a molar ratio of 4:2:10:1. Fourier-transform infrared (FT-IR), 1H and 13C NMR spectroscopy analyses revealed that GLPS1a had a backbone consisting ofβ-D-(1,3)-linked-D-glucosepyranosy1 residues with glycosy1 residues composed of β→(1,3) linked arabinoser,β-D-(1,4)-galcose,α-D-(1,2)-xylose and (1→6) linkedα-D-glucose residues.

Key words: Ganoderma lucidum polysaccharide, separation, purification, structural

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