Consistency indexes of the yog-ice cream samples (Figure 1) reveal increases in the viscosity of yog-ice cream mixes from low fat to high fat, and in relation to the proportion of inulin concentration.
Increased viscosity in the low fat samples containing inulin can be explained by the interactions of the dietary fibre and liquid components of the yog-ice cream mix.
Inulin, being highly hygroscopic, would bind water and. form a gel-like network that, in addition to the other components, would modify the rheology of the mix.
Additionally, the use of a viscous acid-formed protein-gel added as stirred yogurt may contribute to the formation of the ice-cream system.