TY - JOUR
T1 - Localization of alkylresorcinols in wheat, rye and barley kernels
AU - Landberg, Rikard
AU - Kamal-Eldin, Afaf
AU - Salmenkallio-Marttila, Marjatta
AU - Rouau, Xavier
AU - Åman, Per
N1 - Funding Information:
This study was financially supported by the European Commission in the Communities 6th Framework Program, Project HEALTHGRAIN (FP6-514008). This publication reflects only authors' views and the Community is not liable for any use that may be made of the information contained in this article. The authors would like to acknowledge Dr. Karin Autio for her interest in the project and Liisa Änäkäinen for the preparation of samples for microscopy.
PY - 2008/9
Y1 - 2008/9
N2 - 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.
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.
KW - Alkylresorcinols
KW - Barley
KW - Biomarker
KW - Rye
KW - Wheat
KW - Whole grain
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U2 - 10.1016/j.jcs.2007.09.013
DO - 10.1016/j.jcs.2007.09.013
M3 - Article
AN - SCOPUS:49449104079
SN - 0733-5210
VL - 48
SP - 401
EP - 406
JO - Journal of Cereal Science
JF - Journal of Cereal Science
IS - 2
ER -