Comparison of supercritical carbon dioxide and ethyl acetate extraction of alkylresorcinols from wheat and rye

Abstract

In this study, the application of supercritical carbon dioxide extraction of alkylresorcinols (AR) was quantitatively and qualitatively compared to a commonly used ethyl acetate extraction procedure. No difference in total AR content, relative homolog composition or total extract yield was found between the two extraction methods. Ethyl acetate extraction of intact wheat and rye kernels yielded only 9-20% of the total extract weight obtained with milled samples, but the same amount of alkylresorcinols, showing the benefit of analyzing intact grains whenever it is possible. The major compounds in all extracts (R-f = 0.8) were fatty acids in esterified form, most probably fatty acid alcohol esters. The two different extraction techniques produced comparable results under the conditions used, which suggests that issues other than performance need to be considered when choosing an appropriate technique. (c) 2007 Elsevier Inc. All rights reserved

Published in

Journal of Food Composition and Analysis
2007, volume: 20, number: 6, pages: 534-538
Publisher: ACADEMIC PRESS INC ELSEVIER SCIENCE

SLU Authors

• Landberg, Rikard

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Åman, Per

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Kamal-Eldin, Afaf

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Food Science

Publication identifier

• DOI: https://doi.org/10.1016/j.jfca.2007.02.009

Permanent link to this page (URI)

https://res.slu.se/id/publ/14703