FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (20 ): 53-55.doi: 10.7506/spkx1002-6300-200920006

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Purification of Red Pigment from Camphor Tree Fruits by Macroporous Resin Adsorption

GUI Ke-yin1,WEN Chi-fu2,*,WANG Lan2,WANG Jing2,SONG Wei-hua2,XIA Kai2,YANG Tong2   

  1. 1. College of Resource and Planning Science, Jishou University, Zhangjiajie 427000, China ;
    2. College of Biological Resource and Environmental Science, Jishou University, Jishou 416000, China
  • Received:2009-06-11 Online:2009-10-15 Published:2010-12-29
  • Contact: WEN Chi-fu2,*, E-mail:zjjlyw@21cn.com

Abstract:

Red pigment from camphor tree fruits (RPCF) was purified by macroporous resin adsorption to elevate its color value. D-406 resin was chosen from 7 types of macroporous resins for the purification due to excellent adsorption capability. Subsequently, the optimal adsorption and desorption conditions of RPCF were investigated by single factor test and an enlarged test was carried out to verify them. Results indicated that an optimal purification of RPCF could be achieved through a procedure based on adsorption of sample solution at pH 3, followed by desorption using 50% ethanol solution at pH 6 with a flow rate of 1 BV/h, which resulted in a 4.8-fold increase of color value.

Key words: macroporous resin, camphor tree fruit, natural pigment, purification

CLC Number: