FOOD SCIENCE ›› 2011, Vol. 32 ›› Issue (4): 21-24.doi: 10.7506/spkx1002-6630-201104005

• Processing Technology • Previous Articles     Next Articles

Purification of Anthocyanins from Red-core Radish by Macroporous Resin

DONG Zhou-yong,A Ga,ZHAO Guo-jian,WANG Xiao-dan,YAN Lin-na   

  1. 1. College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China; 2. Department of Food Science and Engineering, Shanxi Normal University, Linfen 041000, China
  • Online:2011-03-12 Published:2017-04-06

Abstract: The adsorption and desorption effects of 6 kinds of macroporous resins on anthocyanins from red-core radish were compared. The adsorption and desorption properties of resin AB-8 on anthocyanins from red-core radish were further investigated. Results indicated that the adsorption equilibrium time of anthocyanins on resin AB-8 was 4 h. The highest adsorption capacity of resin AB-8 towards anthocyanins from red-core radish was achieved under the conditions of pH 3 and 20 ℃. In addition, 75% ethanol could provide the best desorption effect on anthocyanins from resin AB-8. The purified anthocyanins obtained under the optimal conditions were purple dark powder with color value of 47.8, which exhibited 12-fold enhancement compared with the color value of anthocyanins before purification.

Key words: red-core radish, anthocyanins, purification, macroporous resin

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