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Документ Effect of structure forming additives on the of water bond forms in gluten-free macaroni dough made from corn flour(2017) Rozhno, Oleksandr; Yurchak, Vera; Holikova, TatianaThe water bond forms in dough for gluten-free macaroni products made from corn fine meal flour with addition of different structure forming additives - xanthan, carboximethylcellulose (CMC), gelatin and dry egg white - have been investigated. Research shows that speed of drying of macaroni products made from corn flour with xanthan, gelatin and dry egg white (till first critical moisture (W1 cr)) is higher that contribute to apply harder drying regimes in first period. W1 cr for corn macaroni samples is 28.70-23.40 % that is less than in the wheat products.Документ Water bond forms in the dough and sorbtion properties of gluten-free macaroni products made from corn flour(2017) Rozhno, Oleksandr; Yurchak, Vera; Holikova, TatianaAuthors have developed macaroni products made from fine meal corn flour with usage of structure forming additives of different nature and without them. The correlation of water of different bond forms in macaroni dough with different structural forming additives and without them has been investigated. Results show that water of macro and microcapillaries is prevalent in the corn dough – 39.40 - 54.69 % of overall amount of water. Osmotically bound water amounts 18.75 – 28.04 %, adsorbically bound water -18.49 – 23.13 % of overall amount of water. Absorbtion capability of the macaroni products and amount of adsorbed water have been determined. The micropore structure of these samples was characterized. The correlation between structure of macaroni products, both amount of adsorbed moisture and energy of sorption were proven. The amount of monomolecular layer’s moisture for gluten-free corn macaroni products is significantly higher – in 1.2 – 1.5 times – when compared to the wheat macaroni products. Due to this corn samples obtain higher energy of moisture sorption. The correlation between structural characteristics of the macaroni samples and its quality was shown.Документ Study of the mechanism of the retarding effect by using natural gums(2013) Palyvoda, Svetlana; Yurchak, Vera; Holikova, Tatiana; Fomenko, VenіamіnThe mechanism of natural gums' effect on the preservation of bread freshness has been studied. The stage of bread staleness was estimated from the deformation of bread’s crumb. Hydrophilicity and texture of bread crumb were also considered. The mechanism of gum’s effect on the process of bread staling was studied by determining the respective change in the state of flour starch crystal structure, which was assessed by qualitative Roentgen phase analysis and the change of bread matter moisture bonds with the addition of gums, which was determined by the method of differential thermal analysis. As the result of the research, it was found that addition of natural gums accommodates bread shelf-life extension by means of crumb texture change, as well as the effect on bread biopolymer moisture bondsДокумент Влияние улучшающих добавок на коллоидные процессы в макаронном тесте(2002) Юрчак, Вера ГавриловнаОпределены формы связи влаги с материалом с помощью дериватографа, а также в процессе вакуумного обезвоживания макаронного теста на установке Мак-Бена, изучено влияние студнеобразователей на прочность теста по показателю предельного напряжения сдвига и на его адгезию. Установлено, что студнеобразователи способствуют увеличению количества прочносвязаной влаги в макаронном тесте и достижению оптимального соотношения прочности теста и его пластичности. Defined water bond forms with the material by the derivatograph, and in the process of vacuum dehydration macaroni dough to the installation Mac-Ben, the influence of gelling agents on the strength dough in terms of the limiting shear stress and its adhesion. Found that gelling agents increases the quantity of the tightly bound water in the macaroni dough and achieve an optimal balance of strength and plasticity of dough.Документ Исследование форм связи с материалом в макаронном тесте(2003) Манк, Валерий Вениаминович; Юрчак, Вера Гавриловна; Голикова, Татьяна ПетровнаВ работе представлены исследования форм и энергии связи влаги с материалом в макаронном тесте. Исследованы процессы сорбции и десорбции, а также кинетика удаления влаги в макаронном тесте. Установлено влияние нетрадиционного сырья и пищевых добавок на коллоидные процессы при приготовлении макаронных изделий. Определены константы скорости десорбции при вакуумном обезвоживании макаронного теста. The papers demonstrate the researching of form and energy of water existing in macaroni dough. Processes of sorbtion and desorbtion as well as kinetic of dehydration of macaroni dough were also investigated. Influence of non-traditional raw materials and food additives on above-mentioned processes was found out. Speed desorbtion constants in vacuum dehydration of dough were identified.