FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (4): 62-65.doi: 10.7506/spkx1002-6630-201204013

• Processing Technology • Previous Articles     Next Articles

Macroporous Resin Adsorption for Purification of Pigments from Wild Plum Skins and Their Stability

LI Zi-wei,OUYANG Yan,LA Ping,ZHANG Xue-rong,MA Xiao-rong   

  1. College of Chemistry and Biology, Yili Normal University, Yining 835000, China
  • Online:2012-02-25 Published:2012-02-14

Abstract: The purification of pigments from wild plum skins was studied by macroporous resin adsorption. Macroporous resin type D101 showed the best adsorption effect on pigments from wild plum skins among the resins tested, and the best elution results were achieved using 80% ethanol solution. Pigments from wild plum skins were stable under acidic conditions (pH ≤4), but unstable when exposed to light and heat. Al3+, Fe3+, Mg2+, Cu2+ and Na+ had obvious hypochromic effect on the pigments.

Key words: wild plum pigment, resin, extraction process

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