High-Throughput Screening Of Argan Oil Composition And Authenticity Using Benchtop(1)H Nmr
MAGNETIC RESONANCE IN CHEMISTRY(2020)
摘要
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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关键词
argan oil, authenticity, benchtop NMR spectroscopy, edible oil, proton NMR, triglyceride, unsaturates
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