4. Conclusions
The pGI in wheat or whole wheat flour noodles significantly
decreased with the incorporation of hydrocolloids, while pGI values
in buckwheat flour-based noodles were negatively affected by hydrocolloids
(p < 0.05). Nonetheless, adding hydrocolloids in all
noodles positively modified the cooking quality, regardless of thenature of the flour. In particular, the addition of hydrocolloids
produced wheat flour-based noodles with improved cooking
qualities and texture similar to that of the control noodle. Also,
hydrocolloids lowered starch hydrolysis and reduced pGI. As a
result, it seems that starch digestibility and noodle quality are
affected by the nature of the flours used, the levels and type of
hydrocolloids included, and the relationship between the flour and
hydrocolloid. In a further study, it will be necessary to optimize the
appropriate combination of hydrocolloid-flour blends based on
their physical characterization and functionality.