食品科学 ›› 1998, Vol. 19 ›› Issue (4): 46-49.

• 专家约稿 • 上一篇    下一篇

胡萝卜汁中胡萝卜素的快速测定

 许辉, 米拉, 田福利, 潘国卿   

  1. 内蒙农牧学院基础部!呼和浩特; 内蒙古大学化学系; 内蒙古商检局
  • 出版日期:1998-04-15 发布日期:2011-12-10

Rapid determination of carotin from carrot juice

 XU  Hui, MI  La, TIAN  Fu-Li, PAN  Guo-Qing   

  • Online:1998-04-15 Published:2011-12-10

摘要: 胡萝卜汁中由于含有较多的果胶,在测定胡萝卜素时,很难将胡萝卜素提取完全,本法采用了提取胡萝卜素时先加入无水Na2SO4洗涤净化,然后直接比色测定汁中的胡萝卜素,并进行了精密度、回收率试验和GB12389—90纸层析法进行了显著性差异检验,结果满意。此方法可专用于胡萝卜汁中的胡萝卜素含量的快速测定。

关键词: 胡萝卜汁, 胡萝卜素, 快速测定

Abstract: A simple and rapid method is described for the determination of carotin form carrot juice.Using the anhydrous sodium salphate as abrading agent the carotin was extrated cleaner by grinding. Than wasing ahd purified it several times by 5% sodium salphate solution. Carotin extracted was determined directly by spectrophotometry. Testing the accuracy is 1. 7% - 2. 67%; recovery is over 97. 1%. This method is getmainly applied to the datermination of carrotin from carrot juice.

Key words: Rapid determination Carotin Carrot juice.