Pasting properties of rice flour substituted with DSF at different
ratios are reported in Table 2. The substitution of rice flour with DSF
tended to decrease all pasting properties. Peak viscosity was
reduced from 701 RVU to 571, 542 and 527 RVU when rice flourwas
substituted with DSF at 90:10, 87.5:12.5 and 85:15 respectively.
Peak viscosity, breakdown, final viscosity and setback were substantially
decreased about 25, 37, 18 and 22% with the rice flour
substitution with DSF at 85:15 as a result of the reduced content of
amylose and amylopectin from rice flour caused by starch dilution
effect, promoted by the DSF addition, rich in proteins and other
components. The hydrophilic soy protein competed with rice starch
for water and decreased its hydration, resulting in lower viscosity
Retrogradation was