4. Conclusions
The quality of non-thermally pasteurized and clarified pineapple
juice was comprehensively investigated using various storage
temperatures and time points. No microbial growth was detected
during 6 months of storage. Storage time and temperature did
not affect the pH and total soluble solids of MF-clarified pineapple
juice. However, the clarified pineapple juice stored at 4 C led to
the lower values in total color difference (DE) and browning index
than those obtained for the juices, stored at 27 and 37 C. During
6 months storage of MF-clarified juice, the loss of total phenol content
at all storage conditions were 15.3% or below. The vitamin C
content was affected mostly by storage time and temperature,
whereas the antioxidant capacity (DPPH and ORAC) were slightly
decreased during storage up to 6 months. Moreover, the reaction