Technologies

Direct quantification of the percentage of arabica in roasted and ground coffee blends of arabica/robusta by High Resolution Nuclear Magnetic Resonance spectroscopy (NMR), in solution and multivariate statistical analysis. Particularly, the metabolites content present in water extracts of coffee is analyzed and compared with NMR data of our database.

The working principle of VTTJ is extremely simple. Two parts (at least one with tube shape) are screwed one into the other with a mechanical interference that creates a metallic seal. One part presents a cylindrical slot, the other presents a conical ring, whose diameter is slightly larger than the one of the cylindrical slot. When the two parts are screwed together, a plastic deformation occurs in the mechanical interference region.