Abstract
The purpose of this study was to analyze polyphenol rich beverages (vitamin enhanced waters (VEWs), fruit juices and berry juices) to determine free polyphenol concentrations and free polyphenols per Calorie based on a serving size. The Folin–Ciocalteu reagent was used in a colorimetric assay based on a catechin standard. Fruit and berry juices contained, on average, more than eight-times the concentration of free polyphenols when compared to VEWs. When Calories per serving were taken into consideration, fruit and berry juices contained more than twice the free polyphenols per Calorie.
Highlights
IntroductionBeverages containing high concentrations of polyphenols are becoming increasingly popular
Polyphenols have become a recent interest to health conscious individuals
In order to effectively compare the antioxidant capabilities of fruit juices and vitamin enhanced waters (VEWs), free polyphenols were calculated in μM catechin equivalents
Summary
Beverages containing high concentrations of polyphenols are becoming increasingly popular. This is due to the health benefits that accompany polyphenol consumption, derived from their antioxidant properties [1]. Polyphenols have been reported to potentially inhibit the development of certain types of cancer, such as breast cancer, and slow tumor growth [4,5,6,7,8].
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