Вісники НТУ "ХПІ"

Постійне посилання на розділhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/2494


З 1961 р. у ХПІ видається збірник наукових праць "Вісник Харківського політехнічного інституту".
Згідно до наказу ректора № 158-1 від 07.05.2001 року "Про упорядкування видання вісника НТУ "ХПІ", збірник був перейменований у Вісник Національного Технічного Університету "ХПІ".
Вісник Національного технічного університету "Харківський політехнічний інститут" включено до переліку спеціалізованих видань ВАК України і виходить по серіях, що відображають наукові напрямки діяльності вчених університету та потенційних здобувачів вчених ступенів та звань.
Зараз налічується 30 діючих тематичних редколегій. Вісник друкує статті як співробітників НТУ "ХПІ", так і статті авторів інших наукових закладів України та зарубіжжя, які представлені у даному розділі.

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2018 - 20192

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Автор: search.filters.author.Kondratjuk, Natalia

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  • Ескіз
    Документ
    Prospects of cultivated mushrooms use in technology of sausages
    (Національний технічний університет "Харківський політехнічний інститут", 2019) Stepanova, Tetiana; Kondratjuk, Natalia; Haijuan, Nan; Suprunenko, Katerina
    In order to solve the problems associated with expanding range of sausage meat component of high biological value, a search was conducted for alternative, natural and affordable sources of protein. Protein deficiency in human nutrition has led to the search for ways to increase biological value. It was proposed the optimal ratio of components of sausage meat, consisting of meat and mushroom raw materials. The purpose of this combination is to achieve the composition of sausages to the desired approximation of the "ideal protein" with the established technological effects for this production. The main objective of this work is to study the food and taste qualities of the finished product to expand the range of functional sausages at meat processing enterprises in Ukraine and China. Analysis of these data shows that an increase in the level of meat substitution with mushroom raw materials leads to a redistribution of the mass fractions of moisture, protein, fat and ash. The redistribution of these same indicators is affected by the physical state of the introduced mushroom raw material: powder or finely crushed mass. It was recorded a decrease in the mass fraction of fat by approximately 3% and 6%, respectively. Therefore, it was noted a decrease in energy value from 362 kcal to 335-304 kcal. The proportion of carbohydrates in the experimental samples has increased by an average of 1-2%. The mass fraction of protein remained almost unchanged, but the composition of the protein was closer to the "ideal protein". According to the results of organoleptic evaluation, it was found that when developing recipes for cooked smoked sausages, it is advisable to add boiled mushrooms in an amount of 15 - 20% in finely crushed form. It is advisable to add in the amount of 3.0 - 7.0% at the mixing stage in the form of a dry powder of fried mushrooms. The data presented in this article make it possible to assess the prospects of t he food industry in the production of sausages enriched with semi-finished products of varying degrees of readiness based on cultivated mushrooms. The results of the analytical study reflect the unique degree of the cultivated mushrooms amino acid composition approximation to the "ideal protein". Particular attention was paid to essential (limiting) amino acids and their content in new types of sausages.
  • Ескіз
    Документ
    Quantum-chemical modeling of molecular complexes structure in "uronatic polyesacharides – Сa²⁺" system
    (НТУ "ХПИ", 2018) Kondratjuk, Natalia; Pivovarov, Evgen; Stepanova, Tatiana; Toloshnyi, Danylo; Polyvanov, Yehor
    Quantum-chemical modeling of the process of ionotropic gelling in systems of uronate polysaccharides (high-guluronate sodium alginate and low-esterified pectin) with calcium is carried out. Calculation the interaction of active functional groups of uronate polysaccharides with calcium ion shows the possibility of this process passage with the formation of calcium-guluronate (CaGul₄), calcium-galacturonate (CaGal₄) and calcium-guluronate-galacturonate (CaGal₂Gul₂) chelate complexes. The process of interaction occurs when the carboxyl and hydroxyl groups of the uronate polysaccharides are chemically bound to the calcium ion. It was established that calcium-guluronate complex has an eight binding centres with calcium whereas calcium-galacturonate and calcium-guluronate-galacturonate complexes have four binding centres. This article describes the binding centres in systems that are considered by ionotropic gel formation. This clearly illustrated the spatial atoms arrangement in the systems of individual polysaccharides and their combination; location and value of bond lengths, values of torsion and valence angles. Presented quantum-chemical models are allowed to estimate chemical activity of fragments macromolecular structures during ionotropic gelation. This makes it possible to predict the amount of external bound water, calculate the optimum proportions of substances for the formulation of rational food recipes. The fact of the ionotropic gelation in the combined system "alginate-pectin-Ca" was installed on the basis of the obtained models and their geometric characteristics. In this case the chelate complexes CaGul₂Gal₂ was formed. It is stable during storage, more plastic and soft in contrast to CaGul₄ and stronger than CaGal₄.