食品科学 ›› 2004, Vol. 25 ›› Issue (12): 162-165.

• 分析检测 • 上一篇    下一篇

滴定法对鱼鳞脱除金属离子过程的监控

 段蕊, 张俊杰, 周银玲, 张艳   

  1. 淮海工学院海洋学院,华南理工大学食品与生物工程学院
  • 出版日期:2005-12-15 发布日期:2011-10-24

The Monitoring of Decalcification Process of Fish Scale by Titration

 DUAN  Rui, ZHANG  Jun-Jie, ZHOU  Yin-Ling, ZHANG  Yan   

  1. 1.College of Ocean,Huaihai Institute of Technology;2.College of Food and Biotechnology,South China University
  • Online:2005-12-15 Published:2011-10-24

摘要: 鱼鳞胶不但是一种营养品,而且是能用于食品、药品、化妆品等领域的高安全性添加剂。提取鱼鳞胶首先要除去鱼鳞中的大部分无机成分(主要为羟基磷灰石),本文采用EDTA溶液作为脱除剂(简称脱钙剂),该过程可用滴定法进行监控,随时了解脱除率,比较准确的控制脱钙的终点,经过验证此方法具有较好的重复性和回收率。

关键词: EDTA, 滴定, 脱钙

Abstract: Gelatin extracted from fish scale is not only a kind of nutritive food, but a prospective additive with higher safety used in food, drug and cosmetics fields. To get the gelatin , the inorganic substance(mainly hydroxyl apatite) in fish scale must be removed. The decalcification of fish scale was carried out in EDTA solution (decalcification agent). The process was monitored by titration. The method is exact and convenient to learn the decalcification rate and determine the terminal point during the decalcification process. The results of reproducibility and stability show that the method is feasible.

Key words: EDTA, titration, decalcification