Localization of alkylresorcinols in wheat, rye and barley kernels

Rikard Landberg (Corresponding Author), Afaf Kamal-Eldin, Marjatta Salmenkallio-Marttila, Xavier Rouau, Per Åman

Research output: Contribution to journalArticleScientificpeer-review

101 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
JournalJournal of Cereal Science
Volume48
Issue number2
DOIs
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed

Fingerprint

alkylresorcinols
Hordeum
rye
Triticum
Hand
barley
Endosperm
wheat
Hyalin
testa
Biomarkers
seeds
Gas chromatography
Gas Chromatography
Optical microscopy
Microscopy
Microscopic examination
pericarp
Lipids
Light

Keywords

  • alkylresorcinols: wheat
  • rye
  • barley
  • whole-grain
  • biomarker

Cite this

Landberg, R., Kamal-Eldin, A., Salmenkallio-Marttila, M., Rouau, X., & Åman, P. (2008). Localization of alkylresorcinols in wheat, rye and barley kernels. Journal of Cereal Science, 48(2), 401-406. https://doi.org/10.1016/j.jcs.2007.09.013
Landberg, Rikard ; Kamal-Eldin, Afaf ; Salmenkallio-Marttila, Marjatta ; Rouau, Xavier ; Åman, Per. / Localization of alkylresorcinols in wheat, rye and barley kernels. In: Journal of Cereal Science. 2008 ; Vol. 48, No. 2. pp. 401-406.
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Landberg, R, Kamal-Eldin, A, Salmenkallio-Marttila, M, Rouau, X & Åman, P 2008, 'Localization of alkylresorcinols in wheat, rye and barley kernels', Journal of Cereal Science, vol. 48, no. 2, pp. 401-406. https://doi.org/10.1016/j.jcs.2007.09.013

Localization of alkylresorcinols in wheat, rye and barley kernels. / Landberg, Rikard (Corresponding Author); Kamal-Eldin, Afaf; Salmenkallio-Marttila, Marjatta; Rouau, Xavier; Åman, Per.

In: Journal of Cereal Science, Vol. 48, No. 2, 2008, p. 401-406.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Landberg, Rikard

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AU - Åman, Per

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AB - 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.

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Landberg R, Kamal-Eldin A, Salmenkallio-Marttila M, Rouau X, Åman P. Localization of alkylresorcinols in wheat, rye and barley kernels. Journal of Cereal Science. 2008;48(2):401-406. https://doi.org/10.1016/j.jcs.2007.09.013