Sensory evaluation of fettuccini pasta samples showed that, in
general, the substitution of wheat flour resulted in lower level of
liking. Fig. 1 also shows that the acceptance of flavor, aftertaste and
texture did not depend of the concentration of grape marc powder
added to the pasta formulation. Foschia et al. (2013) stated that the
main challenge of adding rich-fiber ingredients in cereal products is
the adverse effects on the end product quality, mainly due to
changes on texture and color properties. The analysis of variance
(ANOVA) showed that the appearance of FP25, the product with the
lowest addition of grape marc powder, did not differ significantly
(p > 0.05) from the control samples, while this attribute in FP50 and
FP75 had significant change (p < 0.05). Since there was the incorporation
of a different ingredient, panel members possibly identified
a variation of the aspect of traditional pastas, leading to a slight
rejection of this sample pasta in comparison to the pasta made only
with wheat flour. Likewise, product color was significantly affected
(p < 0.05) due the substitution of the wheat flour. However, the
fettuccini pasta added to grape marc powder in different concentrations
did not differ significantly (p > 0.05) among them.