High‐throughput screening of argan oil composition and authenticity using benchtop 1H NMR
| Autor: | E. Kate Kemsley, Yvonne Gunning, Fouad Taous, Rachel M. Brignall, Marianne Defernez, Tibari El Ghali, Joshua Colmer, Alex J. Jackson, Mark Philo |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
food.ingredient
High-throughput screening Special Issue Research Articles Argan oil unsaturates 010402 general chemistry 01 natural sciences food authenticity Edible oil Screening method General Materials Science triglyceride argan oil Chromatography 010405 organic chemistry Chemistry General Chemistry Nuclear magnetic resonance spectroscopy 0104 chemical sciences proton NMR edible oil Proton NMR Fatty acid composition Special Issue Research Article benchtop NMR spectroscopy |
| Zdroj: | Magnetic Resonance in Chemistry |
| ISSN: | 1097-458X 0749-1581 |
| Popis: | We use 60‐MHz benchtop nuclear magnetic resonance (NMR) to acquire 1H 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. We use 60‐MHz benchtop nuclear magnetic resonance (NMR) to acquire 1H spectra from argan oils of assured origin. We show that the low‐field NMR spectrum of neat oil contains information sufficient for obtaining composition values and informing 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. |
| Databáze: | OpenAIRE |
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