食品科学 ›› 2012, Vol. 33 ›› Issue (1): 68-71.doi: 10.7506/spkx1002-6630-201201013

• 基础研究 • 上一篇    下一篇

海带中岩藻多糖的分离纯化与结构分析

张文清,左萍萍,徐 辰,杨 蕾,张玉龙,夏 玮*   

  1. 华东理工大学化学与分子工程学院,上海市功能性材料化学重点实验室,上海 200237
  • 收稿日期:2011-01-17 修回日期:2011-12-27 出版日期:2012-01-15 发布日期:2012-01-12
  • 通讯作者: 夏 玮 E-mail:zuopp123@163.com

Isolation, Purification and Structural Analysis of Fucoidan from Kelp

ZHANG Wen-qing,ZUO Ping-ping,XU Chen,YANG Lei,ZHANG Yu-long,XIA Wei*   

  1. Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering,
    East China University of Science and Technology, Shanghai 200237, Chinaa
  • Received:2011-01-17 Revised:2011-12-27 Online:2012-01-15 Published:2012-01-12
  • Contact: XIA Wei E-mail:zuopp123@163.com

摘要:

通过DEAE-纤维素和凝胶过滤色谱反复柱层析,采用苯酚-硫酸法和高效凝胶过滤色谱法(HPGFC)检测,从提取的海带岩藻多糖中得到了均一多糖TC-1,并结合多种分析手段:包括糖组成分析、甲基化分析、红外光谱(IR)分析等对其化学结构进行测定。结果表明:TC-1重均相对分子质量(Mw)为3.7×105,主要由岩藻糖构成,此外还伴有少量的木糖、甘露糖、葡萄糖和半乳糖组成的结构复杂的硫酸酯多糖。其中岩藻糖糖基以1,4-、1,3-连接方式存在;木糖以1,3-连接方式存在;甘露糖以1,3-、1,6-连接方式存在;葡萄糖以1,3,4-、1,2,4,6-连接方式存在;半乳糖以1,6-、1,3,6-、1,3,4,6-连接方式存在。

关键词: 海带, 岩藻多糖, 分离纯化, 结构分析

Abstract:

A homogeneous polysaccharide named as TC-1 was obtained from kelp by DEAE-cellulose and gel filtration chromatography. Its chemical structure was characterized by means of monosaccharide composition analysis, methylation analysis and IR spectroscopic analysis. TC-1 was a complex sulfated polysaccharide with a weight-average molecular weight of 3.7 × 105. TC-1 mainly consisted of fucose and small amounts of xylose, mannose, glucose and galactose were also found. The chain of TC-1 included 1,4-linked or 1,3-linked fucose, 1,3-linked xylose, 1,3-linked or 1,6-linked mannose, 1,3,4-linked or 1,2,4,6-linked glucose, and 1,6- linked,1,3,6- linked, or 1,3,4,6- linked galactose.

Key words: kelp, fucoidan, isolation and purification, structural analysis

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