Recently, the focus has been on the introduction of raw materials with a low glycemic index into the food industry, among which buckwheat and rice flour occupy a special place. The use of apple pomace in the bread recipe improves the organoleptic and physicochemical properties of the product. It also allows you to make adjustments to the traditional technology of bread production: to reduce the fermentation process by increasing the rate of formation of acids in the dough. The duration of the technological process for the production of bread with the addition of rice flour is increased by increasing the duration of soaking apple pomace in vegetable oil for better binding capacity in the future with rice flour and reducing the moisture content of the dough. In order to adjust the chemical composition, recipes for wheat bread were developed with a partial replacement for buckwheat and rice flour (sample No. 1 and sample No. 2, respectively) and the addition of 9.43% apple pomace. The introduced components will improve the structural and mechanical properties of the dough. The use of apple pomace and flour of cereal crops (buckwheat and rice) in the food industry makes it possible to enrich the chemical composition of bread with dietary fiber, vitamins of group B, K, mineral components (magnesium, calcium, iron, phosphorus, manganese, selenium). Vitamin B2 helps to absorb iron and, together with vitamin B1, helps to maintain the level of this trace element in the blood. From the results of the analysis of the vitamins, it follows that the finished product contains vitamins B1, B2, B5, B6 and K, which can be used for preventive nutrition. The use of food additives of plant origin in the formulation of wheat bread leads to an increase in the biological value of the product and a decrease in its calorie content.
One of the most effective and cost-effective ways to provide the population with important nutrients is the fortification of mass-consumption products. Bakery products are products of regular consumption in the diet. An integrated approach to solving the problem is provided through research in the design of prescription formulations and technologies of new types of bakery products, including through the use of non-traditional vegetable raw materials. Recipes and technology of preparation of samples of wheat bread with apple pomace replacing part of wheat flour with buckwheat (the first sample of bread) and rice flour (the second sample) are developed. The technological parameters of cooking hearth bread, in a non-paired way, have been developed. The influence of buckwheat and rice flour on the duration of the technological process of bread preparation is investigated; the influence of the introduced food additives on the organoleptic and physico-chemical indicators of bread quality is determined; a comparative assessment of the content of mineral compo-nents in the developed and control samples is shown. The use of secondary apple raw materials (fresh-frozen apple pomace), buckwheat and rice flour as non-traditional components in the technology of bakery products allows you to get a product with high organoleptic properties and a rich mineral composition. Studies of the effect of food additives on the organoleptic parameters of the bakery product allow us to make a conclusion about the pronounced effect of the added ingredients on the appearance, color and condition of the crumb. However, these additives do not lead to a change in the taste and smell of baked products. Analysis of the chemical composition of the developed samples of wheat bread showed that the content of iron and phosphorus in them exceeds the value of the control sample by many times.
The influence of secondary apple raw materials (frozen apple pomace) on organoleptic and physicochemical indicators of the quality of wheat bread has been studied. The traditional recipe of wheat bread was taken as a basis. In this recipe for the sample of bread No. 1, a part of the premium wheat flour was replaced with 25% rice flour and 10% frozen apple pomace. In the sample of bread No. 2, a part of the premium wheat flour was replaced with 12.5% rice flour and 10% fresh frozen apple pomace. For the organoleptic assessment, a five-point scale for assessing the quality of bread was developed, in which the maximum number of points up to5 was assigned to each indicator. According to the results of the study of the organoleptic indicators of the quality of the developed samples of bread using a point scale, it was found that they exceeded the control sample. The best was the sample with fresh frozen apple pomace10% and rice flour in the amount of 12.5%. In terms of physical and chemical indicators, the developed samples of wheat bread enriched with apple raw materials meet the regulatory requirements.
Currently, a promising direction in baking is the introduction of microelements such as iodine into the recipe of bread and bakery products. The presence of iodine in the formation of the thyroid hormone determines its biological role. This trace element is the only one known that is involved in the construction of hormones. The development of endemic goiter is caused by a lack of iodine in the body. The influence of apple iodine-pectin extract on physical and chemical quality indicators (moisture, acidity and porosity) of rye-wheat bread was studied. During the manufacturing process of a prototype rye-wheat bread, a standard recipe was used with the replacement of part of the water with apple iodine pectin extract obtained using sodium bicarbonate and adding iodine. The addition of this additive to the rye-wheat bread recipe improves organoleptic quality indicators. In terms of physical and chemical characteristics, bread with the addition of apple iodine-pectin extract meets the requirements of regulatory documents and standards. In order to justify the introduction of apple iodine-pectin extract into the rye-wheat bread recipe, the content of phosphorus and iron in bread samples was analysed using a spectrophotometer. A sample bread containing iodcasein from a local manufacturer was used as a benchmark for the purpose of this review. The iodine content was determined by titration of iodine released during the interaction of potassium iodate and potassium iodide. Analysis of the chemical composition showed that the introduction of apple iodine-pectin extract into the formulation contributes to an increase in the content of minerals, macro- and microelements in bread. On comparison of the samples, the test sample containing apple iodine pectin extract proved to stay fresh for longer than a control sample for 12-24 hours.
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