How-ever, HAA was found to highly correlate with ascorbic acid content(r = 0.90 and 0.81 for ORAC and TEAC, respectively) and phenoliccompounds (r = 0.81 and 0.72 for ORAC and TEAC, respectively) aspresented in Table 7. Similar results were also demonstrated byother studies (Cano et al., 2003; Raffo et al., 2006; Toor and Savage,2006). In fact, the prediction of HAA is not as simple as the sum ofall hydrophilic antioxidant content; it is dependent on synergisticeffect among all antioxidants and their interaction with other con-stituents of the fraction (Lenucci et al., 2006). In this study, HAAobtained from ORAC and TEAC assays was found to increase sig-nificantly throughout storage and ripening durations, which wasgenerally concomitant with the accumulation of both ascorbic acidand phenolic compounds. However, the effect of different treat-ments on HAA, including lower temperature and pressure, was notevident even though the tomatoes subjected to a hyperbaric treat-ment at 0.9 MPa generated higher ascorbic acid and total phenoliccontent than the others, implying that the treatment intensity wasnot effective enough to cause sizable alteration in HAA as it wasevaluated with the methods used in this study.