The functionality of two types of maltodextrins as fat mimetics was studied. Vegetable
fat was replaced at levels of 16.7, 33.3 and 50% by different aqueous gels of
maltodextrin: Pmdx (potato maltodextrin gel) and WMmdx (waxy maize maltodextrin
gel).Vegetable fat without the addition of fat mimetics was used as a control
sample. Steady shear viscosity, hysteresis and dynamic moduli were measured at
semi-solid conditions (30C), whereas textural measurements were determined in
the solid state (20C). Up to 50% fat replacement without much change in firmness
could be achieved with WMmdx. However, blends containing Pmdx expressed significant
decrease in firmness. Fat replacement caused a strong increase in dynamic
moduli, especially with WMmdx. Steady shear viscosity was increased at replacement
levels33.3% and to a larger extent with WMmdx.In contrast to Pmdx,incorporation
of WMmdx did not affect the steady shear hysteresis of the blends.