An innovative solution for the analysis of wine using Nuclear Magnetic Resonance (NMR) spectroscopy has been developed by Bruker with the help of Winespin Analytics.
The principle of the method relies on the acquisition of the spectroscopic fingerprint specific to each individual sample. These profiles are compared to a large database of authentic wine samples using a multivariate statistical approach. Wine-Profiling by NMR combines quality control and testing of safety issues and authenticity in an unique way.
New features in release 3.0:
The EPR oxidation profile provides a truly powerful measure for assessing the antioxidant capacity of beer. Bruker's e-scan Lagtime Analyzer is dedicated to measuring the EPR oxidation profile of your beer. Now you can perform this, once very specialized assay, with a compact, easy-to-use benchtop analyzer.
Oxidative staling of beer occurs by a free radical process. During storage, even trace amounts of transition metals such as iron or copper will catalyze the conversion of molecular oxygen to what are known as "reactive oxygen species" (ROS). One such ROS is the hydroxyl free radical which rapidly oxidizes components of the beer to free radicals. Beer-derived free radicals react further to perpetuate a chain reaction that results in carbonyl end products such as aldehydes and ketones. It is these carbonyl compounds that give rise to the "cardboard like" flavor of stale beer. Antioxidants in beer help them resist free radical oxidation. And although oxidation is inevitable over time, it can be minimized by optimizing brewery operations and storage conditions to provide maximum antioxidant content in the packaged beer. The EPR oxidation profile provides an analytical measure for evaluating the overall antioxidant status of your beer at each stage of the brewing process. The EPR data is also useful for predicting the shelf life of a finished beer before it goes through costly packaging and distribution.