Abstract

Cereal alkylresorcinols (AR), a group of phenolic lipids mainly found in the outer parts of wheat and rye kernels, are currently being studied for the possibility to use them as biomarkers for the intake of whole grain wheat and rye foods. In this work, AR were localised ill grains by using light microscopy and gas chromatographic analysis of hand-dissected botanical and pearling fractions. GC-analysis of hand-dissected fractions showed that more than 99% of the total AR content was located in an intermediate layer of the caryopsis, including the hyaline layer, testa and inner pericarp. Microscopic examination showed that the outer cuticle of testa/inner cuticle of pericarp was the exact location, and that no AR were found in the endosperm or in the germ, suggesting that AR could be used as a selective marker of testa. (C) 2007 Elsevier Ltd. All rights reserved.

Keywords

alkylresorcinols; wheat; rye; barley; whole grain; biomarker

Published in

Journal of Cereal Science
2008, Volume: 48, number: 2, pages: 401-406

SLU Authors

• Landberg, Rikard

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Kamal-Eldin, Afaf

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Åman, Per

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Food Science


Publication identifier

DOI: https://doi.org/10.1016/j.jcs.2007.09.013

Permanent link to this page (URI)

https://res.slu.se/id/publ/20235