Do any antioxidants remain in store-bought vegetable juices of organic quality in Tetra Paks? How long after pressing is homemade vegetable juice of high quality?

Antioxidants are subject to strong oxidation; their activity decreases relatively quickly upon contact with oxygen or commonly occurring sources of free radicals. Generally, the highest amount of antioxidants is found in fresh food sources, as oxidative processes begin at the very moment the juice is pressed. The overall level of antioxidant capacity in juices primarily depends on the technology of their production and processing, and subsequently on their storage. In home conditions, pressed juice can be stored in vacuum-sealed containers, and a lower temperature significantly contributes to nutrient stability. By adhering to these feasible conditions, the activity of antioxidants decreases much more slowly, allowing the juice to be maintained at high quality for more than 24 hours.

Themes:  Antioxidants