Grape Juice from Concord Grapes has Antioxidant Benefits
This is the second study in less than a year that demonstrates the superior antioxidant capacity of Concord grape juice.
21/03/07 With growing evidence that links antioxidant-rich diets with better long-term health, and further evidence that oxidative stress is a factor in age-related declines, more and more consumers are seeking foods that are naturally rich in antioxidants. A newly published study in the Journal of Agriculture and Food Chemistry suggests grape juice made from Concord grapes may be an outstanding source among popular juices and juice drinks.
According to the study, Welch’s Purple Grape Juice delivered the highest antioxidant capacity and contained the highest total and broadest range of polyphenol antioxidants among 13 popular U.K. juices and juice drinks tested. Researchers at the University of Glasgow, Scotland used High Performance Liquid Chromatography1 (HPLC) and Mass Spectrometry2 (MS) to identify and quantify individual phenolic compounds in the fruit juices and juice drinks. Additional analysis included the Folin-Ciocalteu assay to measure the phenolic content of the juices and the Oxygen Radical Absorbance Capacity3 (ORAC) assay to measure the antioxidant capacity. Antioxidant capacity and variety of polyphenol antioxidant compounds varied significantly by flavor.
