Pomegranate juice concentrate powder. Pomegranate juice is extracted from the fruit of the small tree, Punica granatum. The pomegranate tree is native to areas in the Middle East and is cultivated throughout the Mediterranean region 1. Pomegranates are an excellent source of vitamin K and folate, and a good source of vitamin C, potassium, copper and manganese 2. Pomegranate fruit and juice also contain polyphenolic compounds that have antioxidant activities 3.