Manufacture of gluten-free products requires
the use of preselected raw materials. The number of such
ingredients is limited; therefore, the portfolio of gluten free
bread is less variable and attractive in terms of their
appearance, taste and nutritional value in comparison
with traditional bread. The aim of the study was to apply
debitter acorn flour as a natural nutritional enrichment
of gluten-free bakery products and to check its effects on
rheological properties of the dough and quality and staling
of the bread. The analysis of rheological properties of
gluten-free dough supplemented with acorn flour exhibited
significant increase in the moduli GŒ and G and a decrease
in phase shift tangent, which denotes firming of dough
structure. Introduction of limited amounts of acorn flour
caused an increase in bread volume and improved crumb
characteristics. In consequence of a diminished starch retrogradation,
the respective loaves exhibited slower staling.
Bread supplemented with acorn flour exhibited improved
sensory acceptance. The obtained results signify that the application of debittered acorn flour in gluten-free baking
could be useful for nutritional reasons, as it enriches bread
with protein, minerals and dietary fiber, but also because of
its technological effects, including structure strengthening,
and sensory improvement.