New active package based on titania coated on cardboard for storage of fresh prepared orange juice

Abstract

An active package from cardboard coated with titanium dioxide was designed for storage of fresh prepared orange juice. The organoleptical changes of the orange juice were statistically significant and revealed the preservation role of the active cardboard at 4 C. Statistically significant positive effect on the reducing the rate of ascorbic acid degradation and on the increasing the catalase activity, respectively, was generated by coating TiO 2 , revealing that the semiconductor favors the preservation of the orange juice during storage. FTIR spectra revealed new compounds in the juice stored in the active package at 4 C, but these substances has no significantly affected the characteristics of the juice. This study reveals that the TiO 2 -cardboard is a promising solution to package fresh prepared orange juice and to store it in safety conditions at 4 C for 7 days. The mechanism that ensure the preservation of juice as a result of TiO 2 particles photoactivity was discussed. Practical applicationsThe study report about a new type of active package made from cardboard coated with TiO 2 designed for storage of fresh prepared orange juice. The results showed the statistically significant and positive influence of TiO 2 on preserving the organoleptical parameters, ascorbic acid content and catalase activity of the orange juice during storage for 9 days. This study reveals that the TiO 2 -cardboard is a promising solution to package fresh prepared orange juice and to store it in safety conditions at 4 C for 7 days.