ABSTRACT
The present research studies the optimization of the textural properties of
new fiber-enriched biscuit formulae. A mixture design was carried out in order
to model the textural properties of dough and biscuit supplemented with
Aestivum wheat bran (AWB) and durum wheat bran (DWB). The desirability
function was used to determine the coordinates of fiber-enriched biscuit formulae
characterized presenting textural properties of dough (hardness, cohesiveness
and adhesiveness) and biscuit (maximum peak force) close to those of
the commercial product without fiber. Two optimal biscuit formulae (Optimal
formula 1 (OM1): 86.66% of wheat flour, 6.67% of DWB and 6.67% of AWB
and Optimal formula 2 (OM2): 73.30% of wheat flour, 13.35% of DWB and
13.35% of AWB) were tested at the industrial scale and provided highly
acceptable scores from the taste panelists.