High‐throughput screening of argan oil composition and authenticity using benchtop (1)H NMR

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 scr...

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Detalles Bibliográficos
Autores principales: Gunning, Yvonne, Jackson, Alex J., Colmer, Joshua, Taous, Fouad, Philo, Mark, Brignall, Rachel M., El Ghali, Tibari, Defernez, Marianne, Kemsley, E. Kate
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Special Issue Research Articles
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8653893/
https://www.ncbi.nlm.nih.gov/pubmed/32220087
http://dx.doi.org/10.1002/mrc.5023
Descripción
Sumario: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.

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