Previous studies have
demonstrated that fruits with higher phenolic contents generally
show stronger antioxidant capacities (Kalt, Forney, Martin, & Prior,
1999; Patras et al., 2009). However, an opposite trend was observed
by Keenan et al. (2010), that the increase in the antioxidant activity
assessed by •DPPH and FRAP was indicated by the decrease in total
phenolics in HHP-treated (450 MPa/5 min) fruit smoothies. It would
also appear from the results in this study that significant correlations
between changes in total carotenoids content and changes in antioxidant
capacity were only found during storage at 25 °C, while they
were weakly correlated during storage at 4 °C