FOOD SCIENCE ›› 2013, Vol. 34 ›› Issue (10): 86-91.doi: 10.7506/spkx1002-6630-201310019

Previous Articles     Next Articles

Macroporous Resin Purification and Composition Analysis of Polyphenols from Blueberry Leaves

FENG Jin,LI Min,ZENG Xiao-xiong,LI Chun-yang   

  1. 1. Institute of Farm Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
    2. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China;
    3. Key Laboratory of Grain and Oil Quality Control and Deep-Utilizing Technology of Jiangsu Province, College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210003, China
  • Received:2012-03-16 Revised:2013-04-08 Online:2013-05-25 Published:2013-05-07

Abstract:

Adsorption and desorption of 8 types of macroporous resins towards polyphenols from blueberry leaves were
investigated. The adsorption capacity and desorption rate of HPD400 resin was 52.95 mg/g and 95.96% respectively, and the
time to reach equilibrium between adsorption and desorption was short, so it was the most suitable resin to purify blueberry
leaves polyphenols. When 140 mL of 3 mg/mL samples with pH 2 was flowed through the HPD400 resin at a speed of 1
mL/min, the adsorption reached dynamic equilibrium. The adsorbed polyphenols could be completely eluted with 80 mL of
40% ethanol at 1 mL/min, resulting in a desorption rate of 90.50%. After being purified with HPD400 resin, the purity of
polyphenols was increased from 38.75% to 69.38%. HPLC-DAD-MS analysis showed that the blueberry leaf polyphenols
were rich in caffeoylquinic acids and quercetin glycosides.

Key words: blueberry leaves polyphenols, macroporous resin, purification, HPLC-DAD-MS

CLC Number: