FOOD SCIENCE ›› 2006, Vol. 27 ›› Issue (6): 100-103.

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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

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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