When comparing each system before and after pasteurization,in SPC:SA formulation with vitamins, the heat treatment induced a significant decrease of D4,3 value, compared to the same formulation without pasteurization, thus contributing to the formulation stability. And SPC:SA system with FA presented an increment in the liposomal size after pasteurization, with a significant increase in the D4,3 value. The rest of the formulations before and after pasteurization showed no significant differences, demonstrating a good thermal stability of the systems in terms of particle size distribution and tendency to aggregate
Size and tendency of aggregation were stable throughout 28 days of storage at 4 C for all formulations, with the exception
of the system with CaS, where a mild size increment and aggregation was observed (data not shown).