Localization of alkylresorcinols in wheat, rye and barley kernels

Rikard Landberg, Afaf Kamal-Eldin, Marjatta Salmenkallio-Marttila, Xavier Rouau, Per Åman

Research output: Contribution to journalArticlepeer-review

128 Citations (Scopus)

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 in 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.

Original languageEnglish
Pages (from-to)401-406
Number of pages6
JournalJournal of Cereal Science
Volume48
Issue number2
DOIs
Publication statusPublished - Sep 2008
Externally publishedYes

Keywords

  • Alkylresorcinols
  • Barley
  • Biomarker
  • Rye
  • Wheat
  • Whole grain

ASJC Scopus subject areas

  • Food Science
  • Biochemistry

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