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Identification and quantification of even and odd chained 5-n alkylresorcinols, branched chain-alkylresorcinols and methylalkylresorcinols in Quinoa (Chenopodium quinoa)

Journal article
Authors A. B. Ross
C. Svelander
B Göran Karlsson
O. I. Savolainen
Published in Food Chemistry
Volume 220
Pages 344-351
ISSN 0308-8146
Publication year 2017
Published at Swedish NMR Centre at Göteborg University
Pages 344-351
Language en
Links doi.org/10.1016/j.foodchem.2016.10....
Keywords Alkylresorcinol, Biomarker, Gluten-free, Pseudocereal, Quinoa, Whole grain
Subject categories Biological Sciences

Abstract

Quinoa is a pseudocereal grown in the Andean region of South America that is of increasing interest worldwide as an alternative staple food. We have detected a complex mixture of both odd- and even-alkyl chain alkylresorcinols (AR), branched-chain alkylresorcinols (bcAR) and methylalkylresorcinols (mAR) in ethyl acetate extracts of quinoa. We quantified the content of AR in 17 commercial samples of quinoa, and found that the mean ± SD content of AR was 58 ± 16 μg/g, bcAR was 182 ± 52 μg/g, and mAR was 136 ± 40 μg/g. AR from quinoa could also be detected in plasma after eating quinoa, indicating that some of these unique AR could be used as biomarkers of quinoa intake in humans. Further work is required to understand the role of these ARs in the quinoa plant and whether any of the novel ARs may be of particular interest in human nutrition. © 2016 Elsevier Ltd

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