Yellow passion fruit juice (PFJ) was evaluated following fortification with sucrose and ascorbic acid and deaeration to
remove dissolved oxygen for comparison to a nonfortified, nondeaerated control. The thermal pasteurization regime used in this study was relatively extreme compared to commercial processes and was hypothesized to result in the greatest change to physicochemical attributes, but overall only small changes in phytochemicals and objective color measurement were found. Significant changes in phytochemicals and juice color were subsequently observed during storage under accelerated conditions. Storage resulted in juice browning and development of sulfury, pungent aromas that resulted in discontinuation of the storage study after 28 days.