3D liquid pattern in beverage retained by pseudoplasticity of hydrocolloid polysaccharides

Abstract

Creation of well-retained 3D fluidic patterns in the beverage was demonstrated using pseudoplastic fluids. The retainability of the obtained patterns depends on the pseudoplasticity of the base beverage as a canvas solution, rather than the viscosity itself. A small amount of xanthan gum added to the canvas solution imparted high pseudoplasticity, resulting in improved retainability of the 3D fluidic patterns. On the other hand, the higher viscosity while keeping Newtonian behavior by addition of e.g., carboxymethyl cellulose led to less effect of the retainability, more susceptible to convective perturbation by drawing motion. Thus, making use of pseudoplasticity rather than simply resorting to viscosity satisfies both visual design and drinking experience. This liquid drawing technology in beverage is based on the rational design of rheological characteristics, enabling the diverse 3D designs in a cup of beverage.