Evaluation of dual flow counter-current chromatography and intermittent counter-current extraction

J Chromatogr A. 2011 Sep 9;1218(36):6102-6. doi: 10.1016/j.chroma.2011.02.032. Epub 2011 Feb 19.

Abstract

The aim of this research is to compare two continuous extraction technologies, intermittent counter-current extraction (ICcE) and dual flow counter-current chromatography (DFCCC), in terms of loading and throughput using the GUESSmix, and show the advantages and disadvantages of the two methods. A model sample containing caffeine, vanillin, naringenin and carvone, with a total load of 11.2 g, was employed with a hexane-ethyl acetate-methanol-water (2:3:2:3) phase system to evaluate an ICcE method on a preparative (912 ml coil volume) DE-Midi instrument. While DFCCC was carried out on a specially designed preparative (561 ml coil volume) bobbin installed in a similar Midi instrument case. While similar throughputs of 7.8 g/h and 6.9 g/h were achieved for the ICcE and DFCCC methods respectively, ICcE was demonstrated to have a number of advantages over DFCCC.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Benzaldehydes / isolation & purification*
  • Caffeine / isolation & purification*
  • Countercurrent Distribution / instrumentation
  • Countercurrent Distribution / methods*
  • Cyclohexane Monoterpenes
  • Flavanones / isolation & purification*
  • Monoterpenes / isolation & purification*

Substances

  • Benzaldehydes
  • Cyclohexane Monoterpenes
  • Flavanones
  • Monoterpenes
  • Caffeine
  • carvone
  • vanillin
  • naringenin