食品科学 ›› 2006, Vol. 27 ›› Issue (6): 100-103.

• 基础研究 • 上一篇    下一篇

膳食纤维和伸展蛋白与矿物质结合能力的比较研究

 刘晶晶, 邓泽元   

  1. 食品科学教育部重点实验室; 南昌大学食品科学与工程系
  • 出版日期:2006-06-15 发布日期:2011-09-22

Study on Binding Capacity of Zn~(2+) and Mg~(2+) with Dietary Fiber and Extensin from Soybean Dregs and Carrot Roots

 LIU  Jing-Jing, DENG  Ze-Yuan   

  1. 1.Key Laboratory of Food Science, Ministry of Education, Nanchang University, Nanchang 330047, China; 2.Department of Food Science and Technology, Nanchang University, Nanchang 330047, China
  • Online:2006-06-15 Published:2011-09-22

摘要: 本文主要研究了豆渣、胡萝卜水不溶性膳食纤维及其细胞壁中的伸展蛋白与矿物质(Zn2+、Mg2+)的结合能力。结果表明:豆渣膳食纤维与Zn2+、Mg2+在pH值为5.0时结合量达最大分别为1087μg/g和687μg/g,豆渣伸展蛋白与Zn2+、Mg2+在pH值为5.0时结合量达最大分别为204μg/g和147μg/g;胡萝卜膳食纤维与Zn2+、Mg2+在pH值为4.0时结合量达最大分别为1112μg/g和392μg/g,胡萝卜伸展蛋白与Zn2+、Mg2+在pH值为5.0时结合量达最大分别为124μg/g和176μg/g。

关键词: 豆渣, 胡萝卜, 伸展蛋白, 膳食纤维, 矿物质

Abstract: The binding capacity of Zn2+ and Mg2+ with diet fiber and extensin from the soybean dregs and carrot roots was studied in this article. The results are as follow: the maximal binding capacity of Zn2+ and Mg2+ with dietary fiber from soybean dregs is 1087μg/g and 687μg/g at pH5.0, respectively; that of Zn2+ and Mg2+ with extensin from soybean dregs 204μg/g and 147μg/g at pH5.0, respectively; that of Zn2+ and Mg2+ with dietary fiber from carrot roots 1112μg/g and 392μg/g at pH5.0, respectively; and that of Zn2+ and Mg2+ with extensin from carrot roots 124μg/g and 176μg/g at pH5.0, respectively.

Key words: soybean dregs, carrot root, extensin, diet fiber, trace elements