Tomato pomace is a byproduct of tomato puree production, consisting primarily of peels and seeds. It is particularly rich in high-value compounds, particularly carotenoids, especially lycopene. However, its high water content represents a significant limitation, as it promotes degradation and fermentation of this material, especially when stored at room temperature. Residual moisture also increases the weight of the byproduct, negatively impacting the sustainability of transportation.

In light of these critical issues, the primary objective of one study (C. Lazzarini et al., 2025) was to reduce the residual moisture content of a tomato pomace sample collected from a local company, with the aim of improving its stability and facilitating the recovery of bioactive compounds for subsequent applications. The byproduct was dried using a prototype non-thermal air dryer.

The shelf life of the dried material was monitored at 60, 80, and 110 days, evaluating parameters such as: water activity, volatile compound profile, microbiological analyses, and carotenoid content.