FOOD. Science. Technology. Quality

Food. SCIENCE. Technology. Quality

Food. Science. TECHNOLOGY. Quality

Food. Science. Technology. QUALITY




Applying Solvent Retention Capacity method (SRC) to evaluate technological quality of wheat flours


The properties of wheat grain determine the processing lines, choice of parameters, course of technological process, and this, in turn, determines the quality of bread. From the point of view of the production scale, it is essential to develop a method to enable a quick and accurate quality evaluation of flour produced from a particular grain. A Solvent Retention Capacity (SRC) test can be one of the methods applied to assess technological usability of flour. In this method, the capacity of flour was utilized to retain aqueous solutions: Na2CO3, sucrose, lactic acid, and water owing to the presence of damaged starch granules, the presence and quality of pentosans, gluten, and other components. The objective of this research performed was to compare the technological properties of wheat flours obtained using standard analytical methods and the relevant results obtained using SRC. The research material was selected so as to have a possibly wide assortment of wheat flours that were analyzed during a period from 2005 to 2007. The results obtained through SRC and the quality parameters of the flours analyzed and of the breads baked from them were compared and statistically elaborated. A significant negative correlation was found between the value of water absorption (SRC test) and the volumes of bread loaves. It was proved that the quality of breads made from the flours analyzed could be predicted on the basis of SRC test only within a small range and that the SRC test is moderately related with the indicators used to evaluate the baking value of wheat flours in a traditional way.


SRC test, wheat, wheat flour, technological value, and quality