Modeling and optimization of an adsorption process for the recovery of catechins from green tea

Miguel Monsanto, Adithya Thota Radhakrishnan, David Sevillano, Nasim Hooshyar, J. Meuldijk, E. Zondervan

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

Abstract

Catechins are the main polyphenols present in a green tea and have been associated to several health benefits due to the antioxidant, antimutagenic and antiviral properties. They are, therefore, regarded as desired components with several applications in a variety of areas such as foods, cosmetics and pharmaceuticals. In this study a macroporous polymeric resin is used as an adsorption medium for separating the polyphenols. Based on experimentally determined mass transfer coefficients and diffusion coefficients, a packed bed column model is developed. The highlight of this work is that we are modeling a very complex multicomponent system, where the four catechins present in green tea and caffeine are competing for the adsorption sites. This model is an axial dispersed plug flow model where the mass transfer is modeled using the linear driving force (LDF) approach. This type of predictive models allows the estimation of the adsorption amount with the contact time. The model delivers catechins and caffeine breakthrough curves for the column and it can be used to optimize the parameters in such way that the highest possible recovery yield and purity for the catechins can be obtained.

Original languageEnglish
Title of host publicationProceedings of the European Symposium on Computer Aided Process Engineering (ESCAPE24), 15-18 June 2014, Budapest, Hungary
EditorsJ.J. Klemes, P.S. Varbanov, P.Y. Liew
Place of PublicationAmsterdam
PublisherElsevier
Pages1441-1446
Number of pages6
ISBN (Print)978-0-444-63456-6
DOIs
Publication statusPublished - Jan 2014
Event24th European Symposium on Computer Aided Process Engineering (ESCAPE 24) - Hungarian Academy of Sciences (HAS), Budapest, Hungary
Duration: 15 Jun 201418 Jun 2014
Conference number: 24
http://www.escape24.mke.org.hu/

Publication series

NameComputer Aided Chemical Engineering
PublisherElsevier
Volume33
ISSN (Print)1570-7946

Conference

Conference24th European Symposium on Computer Aided Process Engineering (ESCAPE 24)
Abbreviated titleESCAPE
Country/TerritoryHungary
CityBudapest
Period15/06/1418/06/14
Internet address

Keywords

  • Adsorption
  • Catechins
  • Macroporous resin
  • Model
  • Tea

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