In the paper, the effect of mineral components obtained after the nanofiltration process of whey on the wheat bread quality was studied. The baking properties of flour and the quality of bread produced were assessed. The moisture and granulation of flour were determined, a Zeleny sedimentation test was performed, and the quantity and quality of gluten were defined, as were amylographic and farinographic properties of the flour. Also, the baking loss and yield of bread were computed. The bread quality was assessed on the basis of the following measurements taken: bread volume, absolute weight, acidity, and crumb hardness. Furthermore, the basic chemical composition of the bread studied was determined, i.e.: water content, total protein, fat, and mineral components (Ca, K, Zn). It was found that the bread with 2% of whey-derived mineral components added was characterized by the highest volume and by the lowest hardness of the bread crumb. It was proved that when nothing but whey-derived mineral components and their mixtures were added, this had no significant effect on the content of total protein and fat in the bread. With the increasing amount of whey-derived mineral components added, the content of the mineral components (Ca, K, Zn) in the bread also raised. It is possible to replace kitchen salt (NaCl) with 2 to 3% of the whey-derived mineral components when producing bread from a wheat flour type 750 showing weak baking properties; and this replacement will not deteriorate the bread quality.
wheat flour, mineral components, nanofiltration of whey, bread quality