Abstract
Reduction of “bad” carbohydrates in sweets is a complex issue, because carbohydrates provide important sensory, physical and textural properties of food. This research illustrated the possible use of the colorant Brown 7 (0.6...1.0%) in combination with sucralose and isomalt for alerting the functional quality of toffee candies. Sensory and physicochemical properties, microbiological indicators and color parameters were analyzed for four samples of toffee. The combination of sweetener with anti-crystallizer and Brown 7 significantly improves the color of toffees. It was established by HPLC that during thermal processing the Casuarictin from Brown 7 transforms into Ellagic acid. These transformations lead to an increase in the intensity of the brown color in the toffee. The addition of Brown 7 contributes to the decrease of titratable acidity from 0.28 ± 0.08 in the control to 0.21 ± 0.06 degrees of acidity in the sample which contain 1.0% dye. The chromatic parameters L*, a*, b* of the toffee sample with 0.6% Brown 7 content are the closest to the classic toffee parameters. Use of colorant in combination with sweetener illustrates a potential synergy of sensorial properties. This help to increase the intake of natural bioactive compounds and to decrease carbohydrates in sweets, promising health benefits.
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