These results show that additive incorporation modified dough
behavior, evidenced by the different calorimetric and rheological
(at small and large deformations) properties. Besides, the electrophoretic
pattern of dough extracted proteins changed after the
addition of glucose oxidase. As a whole, these modifications
resulted in breads with different specific volumes, firmness and
firming rates, and crumb structures. Nonetheless, the breads obtained
did not necessarily show better quality parameters than
the control bread. Control dough produced gluten free breads of
acceptable volume, crumb structure and, principally, with lower
hardening rate during storage. In a previous work it was observed
that there was a specific interaction between soy proteins and cassava
starch, which the results reported herein seem to support, as
this interaction is the one that leads dough and bread behavior. Under
such conditions, high quality bread was obtained. From this
viewpoint, additive incorporation did not improve final bread technological
quality, as they may disrupt and/or impede the interaction
between both polymers (soy proteins and cassava starch). Contrary
to widespread opinion, this work shows that the presence of additives
is not essential for gluten free bread production. This fact provides
new perspectives at the moment of selecting raw materials
and technological parameters, considering that a careful selection
of such simple variables may notably diminish production costs
and facilitate gluten free products development.