Authors
Title
Abstract
The objective of the research study was to compare the chemical composition and baking value of a common wheat flour type 500 with spelt flour; the two flour types were produced by milling, in a laboratory, relevant grains grown in organic farms. The material for analyses consisted of flours and wheat bread baked using those flours. The technological quality of the flour, including its water binding capacity, was assessed using an AACC method, and the chemical composition of the flours was assessed by AOAC methods. The bread loaves baked using a straight method were assessed organoleptically and, next, on the day of baking and on the 3rd day of storing them, their parameters were measured, i.e.: volume, moisture content, and texture parameters of the crumb. The spelt flour was characterized by a high water binding capacity and by a poor quality of gluten contained therein; this was confirmed by the baked samples as the volume of the spelt loaves was significantly smaller as compared to the volume of the wheat bread from the commercial flour. The flour made from the three varieties of spelt was characterized by a significantly higher amount of total proteins as compared to the common wheat flour; however, as regards the contents of other chemical constituents, i.e. starch, dietary fibre, fat and ash, the spelt flours did not differ significantly from the common wheat flour type 500 bought in an industrial mill. In the spelt and common wheat flours, the contents of exogenic amino acids and the indices: CS – a limiting amino acid index and EAA – essential amino acids were comparable. Based on the results of moisture analysis and the texture profile (analysis TPA) of the bread crumb, it cannot be authoritatively stated that the breadstuffs made from the spelt flour age faster; either, the reports cannot be authoritatively confirmed that they stay fresh longer than the breadstuffs made from common wheat flour.
Keywords
spelt wheat and common wheat, baking value of flour, nutrients, quality of breadstuff