This study reported a quality improver of gluten-free food formulated using hydrothermally treated
polysaccharide mixtures (HTT-PSM) of glutinous rice flour and xanthan gum at different concentrations.
The pasting and viscoelastic properties were determined by rapid visco analyser and rheometer
respectively. The results showed that HTT-PSM had a lower gelatinisation temperature, higher peak
viscosity and weaker gel strength than native glutinous rice flour. The incorporation of HTT-PSM into rice
dough decreased the dough development time and stability significantly; and increased its extensibility
from 2.8 mm to 11.9 mm. Its high extensibility attribute enabled the dough to make gluten-free noodles
with higher tensile strength and similar texture profile as compared to wheat noodles. Sensory evaluation
showed that the overall texture of the gluten-free noodles was acceptable, but not as comparable to
wheat noodles. Positive correlations were observed between xanthan gum content and peak viscosity,
gel strength, noodle tensile strength, hardness and chewiness.