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Abstract
Five ingredients rich in RS (resistant starch) were assessed in a model system simulating baking process (water addition 30–50%, 180 ◦C/35 min) and in reformulated cakes (50% replacement of wheat flour). Moreover, two enzymatic methods used for RS determination (official and rapid) were compared. The combined effect of heating and water addition (50%) significantly decreased the RS content in all ingredients. Reformulated vegan cakes presented significantly lower RS values than those theoretically expected, according to the RS value of raw ingredients. The highest RS amount was observed for Hi Maize, which kept 84% and 72% of the initial RS content in the model systems and cake, respectively. Only the cakes made with Hi Maize reached the criteria for the health claim related to the reduction of post-prandial glycemic response (European Union regulation). Finally, differences between the official and rapid methods were less significant in the cakes than in the model systems.
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