FOOD SCIENCE ›› 0, Vol. ›› Issue (): 21-24.

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Purification of Anthocyanins from Red-core Radish by Macroporous Resin

  

  • Received:2010-04-20 Revised:2010-12-14 Online:2011-02-25 Published:2011-01-20

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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