Physical-chemical and sensorial evaluation of the linseed flour added-cream cracker biscuit and with reduced sodium contents

Abstract

Were verified acceptability and the physical-chemical composition of cream cracker biscuits containing linseed flour and varied quantities of sodium chloride (NaCl), potassium chloride (KCl) and monosodium glutamate (MG). In Step 1 five formulations with NaCl and KCl (0 % to 2 %) were evaluated. In Step 2, the same formulations were analyzed, but MG (0.3 %). No difference among the formulations was found as for appearance, aroma, texture, color and overall acceptance and purchase intent (Step 1). Sample containing 2 % KCl showed the lowest acceptance for taste and aftertaste. The MG did not alter the notes of the attributes (Step 2). The standard product (100 % NaCl) showed the contents of 4.91 ± 0.04 %, 3.78 ± 0.02 g.100g-1, 11.95 ± 0.06 g.100g1, 14.48 ± 0.07 g.100g-1, 68.62 ± 0.28 g.100g-1, 449.43 ± 0.85 kcal.100g-1, for moisture, ash, protein, lipids, carbohydrates and calories, respectively. Sodium contents reduced 66.56 % (Step 1) in sample with the highest KCl concentration (1.5 %), being the acceptability similar to the standard. It is feasible to restrict the NaCl contents in cream cracker biscuits, mainly by the jointed use of NaCl (0.5 %) and KCl (1.5 %). The MG was not relevant in this study, and their use in biscuits might be excluded.