12-25 – Starch Spherulites Having Controlled Enzyme Digestibility and Sustainable Glucose Release

K-State has developed a novel process to produce starch spherulites having a desired enzyme digestibility, using linear a-glucans. The linear a-glucans are obtained by the debranching of starches and crystallized to give rise to well-developed spherulites. By manipulating processing conditions, A- or B-type spherulites with different digestibilities can be produced. The spherulites release sustainable glucose during hydrolysis. The graph depicts the in vitro digestion profiles of three spherulite products. In this example, the A-type spherulites produced have higher resistance to enzymatic hydrolysis than the B-type spherulites, which have a constant digestion rate instead. Therefore, these spherulites have unique enzyme digestion curves. Sarah Nolting snolting@ksu.edu 785-532-3910

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