Aronia melanocarpa and Schisandra chinensis

I just canned three gallons of grape juice last night but three days ago I made some wonderful and delicious juice from our native black chokeberry and Chinese Magnolia-vine.  I suspect that Aronia or black chokeberry which is supposedly widely used in Europe to make juice, is very good for you (anti-oxidants).  I have also read that Magnolia vine makes a very healthful juice and I am always trying new fruits and combinations thereof for juice.