Hydrocolloids are widely used in meat products and pureed foods as they offer thickening and viscosityenhancing effects that facilitate shaping and improve stability.In this study,the static shear rheological and dyna...Hydrocolloids are widely used in meat products and pureed foods as they offer thickening and viscosityenhancing effects that facilitate shaping and improve stability.In this study,the static shear rheological and dynamic viscoelastic properties of pumpkin puree(S)and pork mince(P)with the addition of various hydrocolloids were considered.Dedicated material printing experiments were conducted by means of a three-dimensional printing platform by using a coaxial dual-nozzle for sandwich composite printing of four different materials.In particular,the impact of different process parameters(printing speed 10~30 mm/s,filling density 10%~50%)was assessed in terms of 3D printing adaptability and final shape of the pumpkin puree-pork mince products.The results have indicated that the addition of hydrocolloids significantly improves the rheological properties of these materials,enhancing their stability in the 3D printing process.Experiments have revealed that with an increase in the xanthan gum conte nt,the viscosity of pumpkin puree decreases.The relationship between the elastic modulus and viscous modulus for the minced pork follows the inequality P4<P3<P2<P1(1.17%,1.75%,2.13%,and 2.88%xanthan gum content,respectively).A“material formula”(detailed composition of the material)suitable for 3D food printing has been derived accordingly.展开更多
基金supported by National Science Fund for Distinguished Young Scholars of China(Grant No.62203198)Key R&D project of Shandong Province,China(Grant No.2022XGC010701).
文摘Hydrocolloids are widely used in meat products and pureed foods as they offer thickening and viscosityenhancing effects that facilitate shaping and improve stability.In this study,the static shear rheological and dynamic viscoelastic properties of pumpkin puree(S)and pork mince(P)with the addition of various hydrocolloids were considered.Dedicated material printing experiments were conducted by means of a three-dimensional printing platform by using a coaxial dual-nozzle for sandwich composite printing of four different materials.In particular,the impact of different process parameters(printing speed 10~30 mm/s,filling density 10%~50%)was assessed in terms of 3D printing adaptability and final shape of the pumpkin puree-pork mince products.The results have indicated that the addition of hydrocolloids significantly improves the rheological properties of these materials,enhancing their stability in the 3D printing process.Experiments have revealed that with an increase in the xanthan gum conte nt,the viscosity of pumpkin puree decreases.The relationship between the elastic modulus and viscous modulus for the minced pork follows the inequality P4<P3<P2<P1(1.17%,1.75%,2.13%,and 2.88%xanthan gum content,respectively).A“material formula”(detailed composition of the material)suitable for 3D food printing has been derived accordingly.
