Nuclear magnetic resonance (NMR) spectroscopy has increasingly been applied in the field of food authenticitation. Its instrumental variability is very low so that it is possible to compile large databases of authentic spectra. This review discusses the application of NMR for authenticating honey, beer and spices. For honey, it is possible to verify the botanical origin and exclude adulteration with sugars. In beer analysis, it is possible to distinguish between major beer types and to detect the geographical origin of beer. In spice analysis, NMR allows to detect crude adulterations (e.g. of saffron) or quantify marker ingredients such as essential oils.
Read the full review at: NMR authentication