FOOD SCIENCE ›› 2013, Vol. 34 ›› Issue (6): 68-72.doi: 10.7506/spkx1002-6630-201306015

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Use of Macroporous Adsorption Resin for the Enrichment of Esterified Catechin

HUANG Lei1,YUE Peng-xiang2,YU Jun2,YANG Jun-guo2,CHEN Xuan1,LI Xing-hui1,*   

  1. 1. College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China;2. Research and Development Center, Damin International Group, Zhangzhou 363000, China
  • Received:2011-11-26 Revised:2013-01-27 Online:2013-03-25 Published:2013-03-01

Abstract: Macroporous adsorption resin was used for the enrichment of esterified catechin from green tea powder. LX-16 was selected from four macroporous adsorption resins by evaluating adsorption and desorption capacity, and investigating velocity curve of static adsorption, adsorption isotherm, dynamic adsorption and alcohol gradient elution. The results showed that LX-16 revealed better adsorption selectivity for esterified catechins. When the loading amount of esterified catechin was 17 mg/g, the purity of purified esterified catechin was 65.2% as opposed to 7.3% for crude esterified catechin, and a recovery rate of 80% was obtained.

Key words: esterified catechin, macroporous adsorption resin, adsorption, desorption

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