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Whey protein concentrate improves the sensory quality of free-fat dairy desserts

Foods free or low-fat constituted are a challenge for the food industry. Thus, the objective of this research was to study the effect of the addition of whey protein concentrate (WPC) in the sensory profile and acceptability of dairy desserts free-fat. Four formulations had been developed with different WPC concentrations (0%, 1.5%, 3.0% or 4.5%, mass%) and sensory characterized by Descriptive Analysis. The acceptability of the formulations was evaluated by 94 consumers who had used the nine-point hedonic scale. Dairy desserts were characterized by eight sensory attributes: color, firmness, resistance to cut, brightness, thickness, gumminess, aroma and vanilla flavor. The formulations containing 3.0 and 4.5% of WPC presented greater intensity of all the attributes. The addition of WPC was effective in the composition of the texture of free-fat dairy desserts and enhances color, flavor and aroma of the product. The formulations with 1.5 and 3.0% WPC had been most accepted, showing that the use of WPC in these concentrations favored the acceptability of the product, providing pleasant sensory characteristics to consumers.

acceptability; sensory characterization; free-fat food


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