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Abstract
In rye bread production, partial scalding of flour has been used for a long time to improve its quality and extend freshness time. The aim of undertaken studies was to check if the similar effect could be obtained by using 2, 5 and 10% additions (weight per weight of wheat flour) of scalded wheat, rye or triticale flour to wheat flour dough. Scalding was performed by mixing flour with hot (75°C) water in proportion 1:2, and incubating the obtained suspension at 40°C for 18 hours. Dough fermentation time was either 45 or 60 minutes. All applied supplements of scalded flour inhibited bread ageing. However, addition of scalded wheat flour to wheat flour dough is not recommended due to unwanted bread odour. 5% of scalded rye and triticale flour together with longer fermentation time (used as standard in direct method of wheat bread baking) were optimal for quality parameters and freshness time. Due to its high amylolytic activity, only 2% addition of scalded triticale flour was enough to obtain better bread properties, i.e. higher efficiency, larger volume and longer freshness.