Cookie properties are shown in Table 4. No differences were
found in cookie moisture content between the mixtures studied,
which means that starch and protein did not have any clear effect in
this parameter. However, cookie dimensions were affected by the
different proportions of flour, starch and protein. On the one hand,
thickness and width (diameter) decreased when protein content
increased in the formula. In this way, there were no differences
observed in spread factor when protein contentwas modified, since
width results were compensated for thickness results. On the other
hand, the addition of starch increased cookie thickness and width.
Despite this, the resultant dimension for cookies with the higher
level of starch studied (60%) were not representative, since the
cookie dough for this formula was excessively sticky and some
difficulties were found in the process and it was necessary to add
flour in the dough lamination. Just like the incorporation of protein,
spread factor was not affected by starch addition, with the exception
of the cookie with the highest starch content. The lower dough
expansion during the baking process promoted by the protein
addition, was also observed by Kaldy et al. (1993) and Miller and
Hoseney (1997) in cookies made from wheat flour. It could be
related to the protein effect on apparent glass transition