Influence of aronia fruit powder on consumer properties of biscuits

Abstract

The results of the influence of the dry powder of the fruits of the Aronia on consumer properties of biscuits, in which wheat flour of the highest grade was replaced with oat flour and, in turn, part of the oat flour - 5, 10 and 15% of fruit powder and cocoa powder are presented. Introduction to the recipe of cocoa powder was due to the fact that the Aroniapowder had a dark color, which turned into grey-green in the baked product, therefore affecting the organoleptic properties of baked biscuit, making it unattractive. This was confirmed experimentally during baking samples of biscuits (sample No. 1). Therefore, to eliminate these drawbacks, cocoa powder was introduced into the recipe in a 1: 1 ratio with Aronia. With an increase in the proportion of applied fruit powder of Aronia, the mass amount of moisture decreased, which can be explained by a decrease in the amount of oat flour used (due to its replacement by fruit powder). By its nature, oatflour contains a large amount of dietary fiber, which has a water-holding capacity, therefore, with a decrease in the amount of oat flout in products, their moisture content decreases. The porosity of the finished product is not affected by the added ingredients, nevertheless, this figure is lower than that of biscuits baked from wheat flour of the highest grade (about 75-80%). Alkalinity in all samples of biscuits was 0.3 degrees. In general, the developed model samples of biscuits with the addition of wild fruit and berry raw materials turned out to be of pretty good quality. According to the results of the analysis of organoleptic and physicochemical parameters for the introduction into mass production, it is possible to recommend samples of biscuits with the addition of 10% of Aronia powder. When establishing expiration dates, it was found that the process of staling proceeds in the samples rather slowly, and the recommended expiration dates for the finished product are 96 hours.