Тези доповідей
Постійне посилання колекціїhttps://dspace.nuft.edu.ua/handle/123456789/7497
Переглянути
10 результатів
Результати пошуку
Документ Influence of sunflower lecithin on conformational changes in dough and bread from wheat flour(2023) Shevchenko, Anastasiia; Drobot, Vira; Litvynchuk (Vorontsova), SvitlanaThe use of food additives of various direction became widespread to improve the quality of bakery products. One of these additives is lecithin, soy lecithin is used to a greater extent. However, given the residual amount of phytoestrogens in it, sunflower lecithin should be preferred. The spectrum of wheat flour has mainly a higher intensity of reflection than the spectrum of sunflower lecithin, however, this tendency is broken in some sections of wavelengths. The reflection spectra of dough and bread samples are located below the spectra of raw materials, with the exception of some extrema, the reflection coefficient decreased accordingly. At a wavelength of 2100 nm, which characterizes protein structural groups, there is a minimum extremum for all samples except lecithin, the value of the relative reflectance of the flour sample is 0.49, the dough after kneading is 0.34, after fermentation is 0.24, bread is 0. 21. This can be explained by the fact that lecithin does not participate in the formation of gluten and causes a decrease in its amount. Considering the valuable properties of sunflower lecithin both for improving the properties of the dough and for the human body, it is a promising raw material for use in bakery production.Документ Changes and redistribution of structural groups in dough and bread with pumpkin cellulose and phospholipids(2023) Shevchenko, Anastasiia; Drobot, Vira; Litvynchuk (Vorontsova), SvitlanaWheat flour, pumpkin cellulose and lecithin have different chemical compositions, so this will affect the change in the basic structural units of dough and bread with these components in the recipe. Changes and redistribution of structural groups were analyzed after kneading the dough, after 3.5 hours of its fermentation and in finished bread. The spectra of the dough of the control sample and with the replacement of 7% of wheat flour with pumpkin cellulose after kneading practically coincide, although the spectrum of the sample with added raw materials is slightly lower. This is explained by the fact that the biopolymers of the raw materials have not yet interacted, as little time has passed for this. During fermentation, a process of proteolysis occurs in the dough, the course of which can be observed by the extremum at a wavelength of 1770 nm. The spectral index of the control sample after fermentation was higher than the spectral index of the sample with replacement, indicating that the dietary fiber of the pumpkin cellulose retards the development of the gluten framework. In addition, pumpkin cellulose does not contain gluten proteins in its composition, which leads to a decrease in their amount in the dough with this raw material.Документ Changes and redistribution of structural groups in dough and bread with rice flour and phospholipids(2023) Shevchenko, Anastasiia; Drobot, Vira; Litvynchuk (Vorontsova), SvitlanaIn recent years, considerable attention has been paid to the problem of rapid growth of diseases of the gastrointestinal tract, such as inflammatory bowel disease. For the prevention of these diseases, the determining factor is nutrition and diet therapy. In the diet of patients with inflammatory bowel disease, it is necessary to reduce the use of fiber while increasing the use of phospholipids. Replacing part of the wheat flour with rice flour affects the redistribution of hydroxyl O-H groups and amino groups N-H in dough and bread, which, against the background of the deterioration of gluten quality, contributes to the increase of water-soluble substances and easier assimilation of products.Документ Structural and mechanical properties of dough with oat bran and phospholipids(2022) Shevchenko, Anastasiia; Drobot, ViraThe effect of oat bran on the structural and mechanical properties of the dough with lecithin was determined. Samples of dough from high-grade flour with leci-thin (3% by weight of flour) and oat bran in different amount were prepared. The addition of oat bran reduced the gas-holding capacity of the dough. The viscosity of the dough also changed with the introduction of oat bran: the diameter of the dough ball during fermentation decreased with increasing dosage of additive.Документ Influence of food additive – sunflower lecithin on the properties of dough for manufacturing bakery products(2021) Shevchenko, Anastasiia; Drobot, ViraThe effect of lecithin on the gas-forming ability of the dough was determined. Samples of dough from high-grade flour with lecithin (3% by weight of flour) were prepared. Lecithin helps to improve the fertility of yeast due to its plastici-zation and the presence of choline, which has a positive effect on the condition of yeast cells. Analysis of the dynamics of gas formation showed the intensification of the released carbon dioxide in the sample with introduction of lecithin. Studies of the quantity and quality of gluten showed a decrease in the amount of raw and dry gluten. The addition of lecithin causes an increase in elasticity, reducing the dilution of the dough.Документ The process of gas formation in the dough with oat bran and phospholipids(2021) Shevchenko, Anastasiia; Drobot, ViraThe effect of oat bran on the gas-forming ability of the dough with lecithin was determined. Samples of dough from high-grade flour with lecithin (3% by weight of flour) and samples with the addition of oat bran in the amount of 5, 7, 10, 15% to replace wheat flour were prepared. Lecithin helps to improve the fertility of yeast due to its plasticization and the presence of choline, which has a positive effect on the condition of yeast cells. But it is reduction of gas formation with oat bran, which will further affect the quality of finished products.Документ Influence of whey protein on the technological process of making bread with fructose and minerals(2018) Shevchenko, Anastasiia; Drobot, ViraThe influence of whey protein on the technological process of making bread was conducted. As indicators of the process there were investigated elastic properties of dough by studying specific volume, visco-plastic properties by spreading dough balls, quantity and quality of gluten and gas producing ability.Документ Gluten-free bakery products(2016) Semenova, Anastasia; Prikhodko, Julia; Drobot, ViraThe abstracts deals with the types of gluten-related disorders and the necessity of creating gluten-free baked goods. An experience of modern manufacturing products for special purposes is considered. In order to improve consumer properties of products it is offered to use multicomponent mixture compositions.Документ Bread for health-improving(2013) Semenova, Anastasia; Mykhonik, Larysa; Hryshchenko, Anna; Drobot, ViraAdding flakes enriches bread with dietary fibers, minerals and vitamins. And the presence of DWG allows increasing the amount of groats in the products without impairing their quality, increasing the protein value to a great extent, reducing the amount of easily digestible carbohydrates and lowering glycemic index of bread.Документ Technology of shelf life bread extending(2013) Silchuk, Tatiana; Drobot, Vira; Kokhan, Olena M.In theses concerning the use of rye malt extract and enzyme preparation Novamil to extend shelf life and reduce cherstvenie bread. У тезах йдеться про використання житнього солодового екстрату та ензимного препарату Новаміл для подовження терміну зберігання та зниження черствіння хліба.