Studies indicate a positive association between dietary salt intake and some diseases, which has promoted the tendency to reduce the sodium in foods. The objective of this study was to determine the equivalent amount of different sodium chloride replacements required to promote the same degree of ideal saltiness in butter and to study the sensory profile of sodium chloride and the substitutes using the analysis of Temporal Dominance of Sensations (TDS). Using the magnitude estimation method, it was determined that the potencies of potassium chloride, monosodium glutamate and potassium phosphate relative to the 1% sodium chloride in butter are 83·33, 31·59 and 33·32, respectively. Regarding the sensory profile of the tested salt substitutes, a bitter taste was perceived in the butter with potassium chloride, a sour taste was perceived in the butter with potassium phosphate and sweet and umami tastes were dominant in the butter with monosodium glutamate. Of all the salt substitutes tested calcium lactate, potassium lactate, calcium chloride and magnesium chloride were impractical to use in butter.
The reduction of salt (sodium chloride) in food is one of the major challenges facing the food industry today and is motivated by the positive association between dietary salt intake and some diseases. Thus, the objectives of this study were to determine the equivalent amount of different sodium chloride replacements required to promote the same degree of ideal saltiness in aqueous solution and to study the sensory profile of sodium chloride and its substitutes using temporal dominance of sensations (TDS) analysis. The relative potencies of potassium chloride, monosodium glutamate, potassium phosphate, calcium lactate and potassium lactate compared to an aqueous solution with 0.75% sodium chloride were 74.75%, 59.52%, 60.48%, 11.40% and 4.96%, respectively. An evaluation of the sensory profiles of potassium chloride, potassium phosphate, calcium lactate and monosodium glutamate revealed saltiness as well as other tastes, including bitterness, sourness, umami and an unidentified undesirable taste as being dominant. The potassium chloride was the only one which showed temporal sensory profile similar to sodium chloride.
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