Study after study seems to conclude that resveratrol and related compound found in red wine have health benefits, despite the fact that red wine also contains a potent toxin, ethanol. Now, Richard Hoffman and Conny Johansson working at the University of Hertfordshire, England, have used HPLC and LC-MS to separate and collect the compounds found in random supermarket wines. "We assume that all red wines are the same," Hoffman says, "but we have found this is certainly not the case as the levels of resveratrol vary between labels." The researchers are working with wine producers to create a labeling system that gives consumers resveratrol health advice.
Analytical benefits of wine