食品科学 ›› 2005, Vol. 26 ›› Issue (9): 48-51.

• 基础研究 • 上一篇    下一篇

大蒜多糖的提取分离与分析

 黄雪松   

  1. 暨南大学理学院食品科学与工程系
  • 出版日期:2005-09-15 发布日期:2011-09-20

Isolation and Identification of Garlic Polysaccharide

 HUANG  Xue-Song   

  1. Department of Food Science and Engineering, Jinan University
  • Online:2005-09-15 Published:2011-09-20

摘要: 目的:提取、分离、纯化大蒜多糖,并对其进行分析。方法:依次用水提取、过滤、去蛋白、DEAE纤维素层析、冷冻干燥获得大蒜多糖;用薄板层析和气相色谱法测定单糖的组成和比例,高效液相色谱法测定分子量;结合IR和13CNMR确定单糖组成、连接方式和端基碳构型。结果:从大蒜中得到了纯多糖,其含有85%果糖、14%葡萄糖、1%半乳糖,分子量7100道尔顿,糖苷键为β-2,1-糖苷键。结论:大蒜多糖是主要含有果糖,葡萄糖和少量半乳糖的大蒜中的β-杂聚糖。

关键词: 大蒜, 多糖, 分离

Abstract: Aim: To isolate and identify the garlic (Allium sativum L.) polysaccharide. Methods: The polysaccharide was got by the extraction, DEAE chromatography etc. The pure polysaccharide was detected by the HPLC,GC and IR,UV, 13CNMR spectrum were obtained and analysed. Results: The polysaccharide is consisted of 85% fructose, 14% glucose and 1% galactose. Its molecular is 7.1kDa. The saccharides were connected on the β-2,1-glycosides. Conclusion: Polysaccharide is a kind of heteropolysaccharide which contains fructose, glucose galactose and is connected by β-2,1-glycosides.

Key words: garlic(Allium sativum L.), polysaccharide, isolat