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Resin selection for the separation of caffeine from green tea catechins

Paper ID Volume ID Publish Year Pages File Format Full-Text
18990 43040 2014 7 PDF Available
Title
Resin selection for the separation of caffeine from green tea catechins
Abstract

•A methodology has been developed for fast selection of resins with a minimum set of experiments.•Batch uptake experiments of green tea with macroporous polymeric adsorbents were performed.•A design of the experiments was performed in order to maximize the accuracy of the parameters.•Multicomponent Langmuir parameters were regressed from the experimental data.•A resin was chosen based on criteria calculated from isotherm parameters.

This work focuses on the rapid selection of a resin from a defined set of macroporous polymeric resins for the decaffeination of catechins from green tea. High-throughput experimentation and design of experiments are used in order to retrieve as much information as possible from a small set of experiments on the interaction of components with the resins. A multicomponent Langmuir isotherm model is used to describe the adsorption and parameters are regressed with high accuracy. These parameters are subsequently used for the definition of criteria to calculate a weighted resin score. The optimal resin is Diaion 20HP with a score of 90.50%, mainly due to its good selectivity for caffeine over catechin (3).

Keywords
Green tea; Catechins; Caffeine; Macroporous polymeric resins; High throughput experimentation; Resin selection
First Page Preview
Resin selection for the separation of caffeine from green tea catechins
Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 92, Issue 2, April 2014, Pages 192–198
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering