As described in the work of E. Tenailleau and S. Akoka, an optimization of the technique parameters have enabled to reach a better accuracy for the C NMR measurements).
The C-SNIF-NMR method is called method “new frontier” because it is the first analytical method that can differentiate sugars coming from C4-metabolism plants (cane, maize, etc.) and some crassulacean acid metabolism plants (CAM-metabolism) like pineapple or agave.
This method can also be applied to tequila products, where it can differentiate authentic 100% agave tequila, misto tequila (made from at least 51% agave), and products made from a larger proportion of cane or maize sugar and therefore not complying with the legal definition of tequila.
This method will certainly have further applications in future, in the field of food and beverage analysis authenticity.