Chemical, Rheological, Sensorial and Functional Properties BuckwheatSemolina Flour Composite Pasta

Abstract

This study intended to prepare pasta by mixing to species of Buckwheati.e.Fagopyrum esculentum (FE) orFagopyrumtataricum (FT) flour in semolina at three mixing levels (10, 20 and 30%) to produce pasta characterized its good sensorial properties and higher nutritional value. Chemical composition, rheological properties, colour attributes, cooking quality, sensory properties and texture analysis of pasta were studied. Fagopyrum esculentum and Semolina were characterized by higher contents of protein and fat than Fagopyrumtataricum and Semolina. Fagopyrumtataricum was more elevated in fibre and ash contents compared with Semolina and Fagopyrum esculentum. Semolina higher percentage of total carbohydrates than Fagopyrum esculentum and Fagopyrumtataricum. Farinograph parameters showed that water absorption, arrival time, dough development time, mixing tolerance index, and dough weakening was increased as the percentage of Fagopyrumesculentum or Fagopyrumtataricum in blends increased while dough stability was decreased. Substitution of FE and FT to Semolina decreased the peak viscosity, trough, breakdown, final and set back peak time and pasting temperatures as the percentage of FE or FT in blends increased. Results also showed that Hunter colour parameters (L*, a* & b*) of pasta were darker as the mixing level of FE or FT increased. However, this result was confirmed by the obtained sensorial results. The cooking quality of pasta showed that the weight, volume and cooking loss of formulated pasta with FE or FT (10-30%) increased as compared to the control sample (pasta 100% semolina). Moreover, sensory evaluation of pasta indicated that all samples were acceptable, but the mouth feels and overall acceptability of pasta fortified with 20% FE and 30% FT doesn’t significantly affect as compared to the control sample, while flavour didn't significantly affect pasta with 30 % Fagopyrum esculentum (FE) or Fagopyrumtataricum (FT). The obtained results of this study are recommended that the need to shed light on adding each of Fagopyrum esculentum (FE) or Fagopyrumtataricum (FT) flour to increase the characteristics satisfactory technological attributes to pasta.