Development and characterization of ribose-crosslinked gelatin products prepared by indirect 3D printing

Indirect 3D printing combined with freeze-drying technology is proposed here as a promising method for the preparation of gelatin-based products. The addition of ribose into gelatin formulations (2.5, 3.5 and 5.0 w/v %) and subsequent heating processes at 70 and 90 °C promoted Maillard reaction with the aim of minimizing samples' moisture sensitivity. The effect of initial gelatin content and crosslinking extension on gelatin products'...