1. Comprehensive study of the effect of oat grain germination on the content of avenanthramides.
- Author
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Jágr M, Hofinger-Horvath A, Ergang P, Čepková PH, Schönlechner R, Pichler EC, D Amico S, Grausgruber H, Vagnerová K, and Dvořáček V
- Subjects
- Edible Grain chemistry, Plant Extracts chemistry, ortho-Aminobenzoates analysis, Avena chemistry, Germination
- Abstract
The chemical profile and the levels of AVNs in oat varieties after germination have been examinated. In the present study, 12 distinct oat varieties were germinated for 0-192 h and a total of 28 AVNs and 3 AVN-hexosides were determined in these samples. Among them, three novel AVNs were synthesized (AVN 1a, AVN 2a, and AVN 2a
d ), characterized using NMR techniques (1D- and 2D-NMR), and assessed in real samples for the first time. The most abundant AVNs in the samples were AVN 2c, AVN 2p, AVN 2f, and their long-chained analogues AVN 2 cd , AVN 2pd , AVN 2fd , together representing 75-85 % of the total AVNs content. The highest total AVN level was observed on average after 48-72 h of germination time and it reached a value 1-1.2 mg/g. Out of 12 investigated oat varieties, CDC Boyer, Diadem, and Rozmar have proved to be the most suitable genotypes for germination., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)- Published
- 2024
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