Effect of Resistant Starch on the Quality Characteristics of Barbari Bread (Cooked in Oven)

Bread is one of the most important food products in many countries. today Food manufacturers, produce more fiber-rich foods that can prevent some diseases. In this study, the Effect of resistant starch on qualitative properties of Barbari was investigated and evaluated.

In this research, starch resistant to amount of Resistant starch at the concentrations of 0, 5, 10, 15 and 20% were added to the formula of Barbari bread and some chemical and rheological analysis carried out.

The results of this study showed that in the characteristics of Farinography of the produced dough, with increasing level of resistant starch, water absorption, expansion time of dough, dough resistance time and qualitative number of farinograph (Valorimetric value) increased and the degree of loosening of the dough decreased after 10 and 20 minutes. In the Extensographic properties of the dough, with increasing the concentrations of resistant starch, the amount of energy, the strength of the stretch strength after 5 minutes and the ratio increased, and the pullability decreased. The study of physicochemical characteristics of bread showed that by increasing the concentrations of resistant starch, moisture content, apparent density, fiber, L * index in crust and crumb of bread increased, and enthalpy, height, texture firmness to 15% resistant starch, a * and b * indices in crust and crumb of bread decreased.

Sensory evaluation of the research work indicated that samples of control and bread containing flour with added 5% resistant starch had the highest score in terms of appearance, texture, novelty and overall bread acceptance.