High-throughput screening of argan oil composition and authenticity using benchtop 1H NMR

Gunning, Yvonne, Jackson, Alex J., Colmer, Joshua, Taous, Fouad, Philo, Mark, Brignall, Rachel M., El Ghali, Tibari, Defernez, Marianne and Kemsley, E. Kate (2020) High-throughput screening of argan oil composition and authenticity using benchtop 1H NMR. Magnetic Resonance in Chemistry, 58 (12). pp. 1177-1186. ISSN 0749-1581

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Abstract

We use 60-MHz benchtop nuclear magnetic resonance (NMR) to acquire(1)H spectra from argan oils of assured origin. We show that the low-field NMR spectrum of neat oil contains sufficient information to make estimates of compositional parameters and to inform on the presence of minor compounds. A screening method for quality and authenticity is presented based on nearest-neighbour outlier detection. A variety of oil types are used to challenge the method. In a survey of retail-purchased oils, several instances of fraud were found.

Item Type: Article
Uncontrolled Keywords: argan oil,authenticity,benchtop nmr spectroscopy,edible oil,proton nmr,triglyceride,unsaturates,fatty-acid-composition,h-1-nmr,identification,spectroscopy,stability
Faculty \ School: Faculty of Science > School of Biological Sciences
Faculty of Science > School of Chemistry
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Depositing User: LivePure Connector
Date Deposited: 27 Oct 2020 01:08
Last Modified: 05 Apr 2021 01:29
URI: https://ueaeprints.uea.ac.uk/id/eprint/77441
DOI: 10.1002/mrc.5023

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