Journal of Food Processing & Technology

Abstract

Survey on production of protein and fiber enriched flat bread by using of lentil flour

Solmaz Saremnezhad, RozhinaTamannaeifar and RojinTafaghodi

The aim of this study was investigating the effect of partial substitution of wheat flour by lentil as a good source of protein and fiber, on dough rheology and physicochemical properties of flat bread (Sangak). In this regard, wheat flour was replaced by lentil flour in 5,15 and 25% (w/w) and the doughs rheology and quality attributes of breads were determined. According to the results, dough development time, stability, resistance to extension, and extensibility were decreased due to presence of lentil flour in farino and extensography tests. Protein, ash and fiber contents of samples increased significantly (p<0.05) compared to control bread. Texture analysis of breads immediately after baking, 24 and 48h later indicated on harder texture of bread with 25% lentil flour. Breads with 15 and 5% lentil didn’t have any significant differences during three days of storage (p>0.05). Color evaluation showed increasing of b* by increasing the percent of wheat flour replacement which wasn’t significant in 15 and 25% lentil breads (p>0.05). In sensorial analysis, most of the panelists selected 15% lentil containing bread as their first preference for consumption. Regarding to the results, bread with 15% lentil was chosen as the best sample and its amino acid profile was compared with control bread. Lysine, as an essential amino acid had 11.767% higher concentration in 15% lentil bread than that of control sample.In conclusion, replacing 15% of wheat by lentil flour can be suggested for production of a nutritious flat bread with superior nutritional properties.