Their results imply that processing can have a major impact on the bioactivity of antioxidants in apple juice. The antioxidant capacity in apple juice is also related to ascorbic acid content. Ascorbic acid degradation over shelf life of fruit juices has been also documented. observed a 40% loss of ascorbic acid in an aseptically packaged orange drink containing 10% orange juice after six months at storage temperatures of 4 C and 15 C and up to a 75% loss at 22 C and 30 C. reported greatest losses of ascorbic acid in thermally pasteurised orange drink packaged in clear or green glass, while in laminated and amber glass had lower losses were observed when exposed to fluorescent light over a 30 day storage period at temperatures between 25 and 30 C. For the project reported here, antioxidant capacity may be directly affected by ascorbic acid oxidation, which could be probably due to oxygen permeation across the polyethylene bag. As can also be inspected in Table 1, ascorbic acid concentration decreased in the same fashion as the TEAC indicator