Dynamic rheological measurements of flour dispersions of25% w/w were determined on a controlled stress rheometer (Universal
Stress Rheometer/Rheometrics Scientific, Inc., NJ). The measuring
system consisted of parallel plate geometry (20 mm
diameter, 0.5 mm gap). After finding the linear viscoelastic region
(LVR) at different temperatures, dynamic temperature ramp tests
were performed at a constant strain of 0.5% in the LVR. The viscoelastic
characteristics (G
0
,G
00
, tand) were recorded during a heating-cooling
cycle experiment (40–90–55 C). The samples were
placed between the plates and allowed to rest for equilibration
for 5 min before beginning experiments. A water trap was used
in order to avoid water evaporation. Furthermore, paraffin oil
was put around the sample. The increasing/decreasing temperature
rate was 5 C/min and sample stayed at 90 C for 10 min.