Evaluation of Quality and Digestibility Characteristics of Resistant Starch-Enriched Pasta
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Resistant starches (RS) can be used in food industry to enhance the dietary fiber content of different cereal based products such as pasta and bread. The aim of present study was to develop and evaluate the physical and functional properties of starch-based products enriched with RS. The in vitro enzymatic digestibility, cooking properties, and viscometric characteristics (using rapid visco analyzer = RVA) of the pasta products were determined. The results showed that the addition of resistant starches (RS-s) influenced the quality of both the raw and cooked pastas. Enzymatic digestibility and five RVA parameters (peak viscosity, trough, breakdown, setback, and final viscosity) were significantly reduced (p < 0.05) in pasta products with added RS. Cooking quality characteristics were unaffected by RS addition. The results also indicated that interactions between RS-s and other flour components may influence the in vitro digestibility of pasta products. According to the sensory evaluation of products, RS-s did not alter the sensory properties of pastas. However, the type of flour had significant effect on the sensory preference.