中国农业科学 ›› 2010, Vol. 43 ›› Issue (19): 4081-4087 .doi: 10.3864/j.issn.0578-1752.2010.19.021

• 贮藏·保鲜·加工 • 上一篇    下一篇

扁桃胶组分和多糖结构的研究

王立新,王森,郜爱玲

  

  1. (温州科技职业学院园林系)
  • 收稿日期:2010-06-27 修回日期:2010-08-13 出版日期:2010-10-01 发布日期:2010-10-01
  • 通讯作者: 王森

Study on the Composition and the Structure of Polysaccharide of Almond Gum

WANG Li-xin, WANG Sen, GAO Ai-ling
  

  1. (温州科技职业学院园林系)
  • Received:2010-06-27 Revised:2010-08-13 Online:2010-10-01 Published:2010-10-01
  • Contact: WANG Sen

摘要:

【目的】研究扁桃胶的氨基酸和单糖组成以及多糖结构。【方法】利用离子色谱仪测定扁桃胶的氨基酸和单糖组成;采用红外色谱仪分析多糖结构。【结果】扁桃胶的氨基酸成分为Arg、Ala、Thr、Gly、Val、Ser、Pro、His、Phe、Glu、Asp、Tyr等12种氨基酸。其中 Thr含量(百分比)最高,为47.89%。扁桃胶的单糖主要由葡萄糖醛酸、木糖和半乳糖和阿拉伯糖组成。另外,还有少量的鼠李糖和海藻糖,这6种成分的摩尔比为24.35﹕9.25﹕33.75﹕31.60﹕0.74﹕0.31。初步推断扁桃胶的多糖主链结构可能由1,6-linked Galp 和1,4-linked Araf 构成;非还原性末端基团为1-linked Fucp、1-linked Ribf 或1-linked GluA;分枝点主要位于1,2,6-linked Galp上。【结论】本研究可以作为扁桃胶深度开发利用的重要依据。

关键词: 扁桃胶, 组分鉴定, 多糖

Abstract:

【Objective】 To predict the constitutes of amino acid and monosaccharide, and the structure of polysaccharide of almond gum. 【Method】 The compositions of amino acid and monosaccharide were determined by ion chromatography and the polysaccharide structure was analyzed by using chromatographic infrared analyzer. 【Result】 Almond gum consisted of 12 kinds of amino acids, Thr, Gly, Ala, His, Arg, Phe, Ser, Glu, Asp, Pro, Val, and Tyr, with Thr being the highest content (47.89%). The monosaccharide of almond gum contained Glua, xylose, galactose, arabinose, and little rhamnose and fucose and their molar ratios of monosaccharide were 24.35﹕9.25﹕33.75﹕31.60﹕0.74﹕0.31. The main chain of polysaccharide of almond gum could contain 1, 6-linked Galp and 1,4-linked Araf. Non-reducing end group was 1-linked Fucp, 1-linked Ribf, or 1-linked GluA. The branching point was mainly located in 1,2,6-linked Galp. 【Conclusion】 This research will play an important role in the further development and utilization of almond gum.

Key words: almond gum, component identification, polysaccharides