FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (12): 50-55.

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Study on Adsorption and Separation of Polyphenols and Pectin from Apple Pomace by Macroporous Resin Adsorbents

 SHUI  Ming-Lei, JI  Bao-Ping, LI  Bo, ZHANG  Gui-Zhi, HU  Ji-Mei   

  1. 1.College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; 2.College of Food Scicence, Xinjiang Agricultural University, Urimuqi 830052, China
  • Online:2007-12-15 Published:2011-11-22

Abstract: In this study, the method of separation of polyphenols and pectin from apple pomace by acid-extraction were researched. The polyphenols and pectin were separation. The result shows that the macroporous resin adsorbent XDA-5 was the optimal absorbent material. The optimum conditions of adsorption and desorption were: pH2.0 or so, the volume of sample 5.0 BV (resin bed volume) and the adsorption speed 3.0 ml/min, and the volume of 60%(V/V) ethanol as eluant was 2.5 BV with desorption-speed 1.5 ml/min.

Key words: apple pomace, polyphenols, pectin, separation, macroporous resin adsorbent