FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (14): 32-36.doi: 10.7506/spkx1002-6630-201014008

• Processing Technology • Previous Articles     Next Articles

Optimization of NKA-Ⅱ Macroporous Resin Purification of Polyphenols from Apple Pomace Using Response Surface Methodology

BAI Xue-lian1,YUE Tian-li1,*,ZHANG Hua-wei2,CHEN Yan1   

  1. 1. College of Food Science and Engineering, Northwest A & F University, Yangling 712100, China;
    2. School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
  • Received:2009-11-24 Online:2010-07-15 Published:2010-12-29
  • Contact: YUE Tian-li1 E-mail:ytl6503@163.com

Abstract:

In order to optimize the NKA-Ⅱ macroporous resin purification of polyphenols from apple pomace, Box-Behnken experimental design coupled with multiple regression analysis was employed to establish separate mathematical models stimulating the adsorption and desorption behaviors of NKA-Ⅱ resin and based on the established models, response surface methodology (RSM) was employed to analyze the respective effects of interactions among adsorption conditions and among desorption conditions on the adsorption and desorption of apple polyphenols onto NKA-Ⅱ resin. The optimum dynamic adsorption conditions were as follows: sample flow rate 1.065 mL/min, pH 3.19, sample concentration 1.421 mg/mL, and the optimum dynamic desorption conditions were as follows: desorption flow rate 0.91 mL/min, ethanol concentration 73.99% and pH 8.90. The optimized purification provided a purity of apple polyphenols of 38.45%.

Key words: apple pomace, apple polyphenols, RSM, macroporous resin

CLC Number: