All the pomegranate tree parts contain polyphenols and possess antioxidant activities. The tannins from bark and stem were most potent.
All the pomegranate fruit parts contain polyphenols and possess antioxidant activity. The fruit membrane anthocyanins and tannins were the most potent fruit antioxidants.
Pomegranate juice contains the highest concentration of total polyphenols, in comparison to other fruit juices studied. The pomegranate juice polyphenols were found to be the most powerful antioxidants.
Pomegranate juice derived gallic acid, as well as ellagic acid and its unique tannins and anthocyanins, inhibit LDL oxidation as a result of their free-radical scavenging and metal ion chelation properties.
