食品科学 ›› 2005, Vol. 26 ›› Issue (7): 43-46.

• 基础研究 • 上一篇    下一篇

牡蛎糖原的研究(II)——牡蛎糖原的分子结构

 陈骞, 杨瑞金, 顾聆琳   

  1. 江南大学食品学院,江南大学食品学院教育部重点实验室
  • 出版日期:2005-07-15 发布日期:2011-09-19

Studies on Oyster Glycogen (II)—— the Fine Structure of Oyster Glycogen

 CHEN  Qian, YANG  Rui-Jin, GU  Ling-Lin   

  1. 1.School of Food Science and Technology, Southern Yangtze University;2.Key Labo-ratory of MOE, School of Food Science and Technology, Southern Yangtze University
  • Online:2005-07-15 Published:2011-09-19

摘要: 本文应用酶法研究了牡蛎糖原的精细分子结构。结果显示牡蛎糖原的分子结构参数-平均链长,外链和内链平均长分别为13、9和3;用异淀粉酶和普鲁兰酶对牡蛎糖原的β-极限糊精进行顺序脱支,结果表明牡蛎糖原的A,B链比值为0.88:1.0,分支化度为1.88。

关键词: 牡蛎, 糖原, 分子结构, 分支化度

Abstract: The fine structure of glycogen purified from oyster was investigated by enzymic methods. The results showed thataverage chain length (CL),interior chain length (ICL) and exterior chain length (ECL) of oyster glycogen were 13, 9 and 3,respectively. The β- amylase limit dextrin of oyster glycogen was completely debranched by joint action of isoamylase and thenpullulanse. The ratio of A and B chains in oyster glycogen was 0.88:1.0, and the multiple branching degree was 1.88.

Key words: oyster, glycogen, structure, multiple branching degree