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

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.

SUBMITTER: Gunning Y

PROVIDER: S-EPMC8653893 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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

Gunning Yvonne Y Jackson Alex J AJ Colmer Joshua J Taous Fouad F Philo Mark M Brignall Rachel M RM El Ghali Tibari T Defernez Marianne M Kemsley E Kate EK

Magnetic resonance in chemistry : MRC 20200406 12

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 ...[more]

PMID: 32220087

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