Перегляд за Автор "Sviatnenko, Roman"

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A structural paradigm in the generalization of intermolecular interactions regularities in water under the influence of external non-reagent factors
(2023) Marynin, Andriy; Sviatnenko, Roman; Shevchenko, Oleksandr; Mykoliv, Ivan; Shpak, Vladyslav
The world’s leading material scientists came to the conclusion that the various properties of substances that people use for their needs depend primarily not on their composition, but on their structure. This is natural, because it applies mainly to substances that are in a solid crystalline state, and the structure, as the spatial arrangement of intermolecular interactions in a substance, clearly affects its physicochemical properties.
Evaluation of indicators of honey of different origin
(2023) Sviatnenko, Roman; Marynin, Andriy; Poznyak, Oksana
Recently, the development of the Ukrainian honey market creates opportunities for the development of agriculture and increasing the income of beekeepers. In particular, the increase in honey production can contribute to the development of other industries, such as the cosmetic and pharmaceutical industries, where honey is an important component. In general, the prospects for the development of the Ukrainian honey market are considered quite promising and favorable for the economic development of the country. The work is devoted to research on the determination of organoleptic and physicochemical parameters of honey of various origins. It was established that all experimental samples of honey (buckwheat, sunflower, floral and linden) meet the requirements of DSTU 4497:2005 "Natural honey. Technical conditions" (State standard of Ukraine) and are of high quality.
Influence of electrochemically activated water on the physical properties and rheological indicators of meat pates
(2023) Marynin, Andriy; Pasichnyi, Vasyl; Shpak, Vladyslav; Sviatnenko, Roman
The object of research is the physical properties and rheological indicators of meat pates with corn starch suspen-sions prepared with activated water. Among the components of the composition of drinking water and food products, there are many substances with particularly inherent biological activity. The biological activity of water is caused by increased electronic or proton activity. Today, various ways of changing properties of water are known, but the most promising reagent-free method is the electrochemical activation of water. As a result of electrochemical treatment of water with an electric current, its electrochemical characteristics change. As a result, electrochemically activated aqueous solutions (catholyte/anolyte) are obtained; the water is saturated with oxygen, accelerates the removal of metabolic waste and promotes the most complete assimilation of nutrients.The research was aimed at determining the influence of activated water in the composition of starch suspen-sions on the physical properties and rheological indicators of meat pates with their content. Activated water affects the pH value of pates, which in the meat industry indicates the freshness and quality of meat raw materials and products made from them. Before pasteurization, the pH value for all samples was practically identical. That is, at the initial stage, activated water does not affect the acidity of pates. In the process of storage, the concentration of (H+) ions increases in pates, and the pH shifts to the acidic side. Water activity indicators of pates with starch suspensions on activated water gravitate towards the indicators of pates more than to the indicators of starch, the range for which is within 0.280–0.400. The dependence of the change in shear stress on the relaxation time of pates showed that regardless of the dosage of the starch suspension, the values of the shear stress of the samples on the catholyte in the time range 0–300 s are significantly higher than the values of the samples on the anolyte and tap water. This is explained by the ability of these samples, having acquired the necessary structure, to be less exposed to the external influence of deformation and to keep the structure more intact. The creep curves of all samples testify about the trimodal nature of the classical experimental creep curve. Thus, the electrochemical activation of water modifies the properties of corn starch and significantly affects the rheological indicators of meat pates containing it.The obtained results can be used in the development of recipes for meat pates and their production at enterprises.
Influence of strong pulsed electric fields on vitamins in milk
(2018) Sviatnenko, Roman; Marynin, Andriy; Kochubei-Lytvynenko, Oksana
The article presents the results of the study on changes in the content of vitamin C in processed milk by pulsed electric fields. The optimal processing modes are set.
Investigation of the effectiveness of air pasteurization of sausage products using active packing elements
(2018) Pasichnyi, Vasyl; Ukrainets, Anatoliy; Khrapachov, Oleg; Marynin, Andriy; Sviatnenko, Roman; Moroz, Elena
The aim of the researches was to determine the effectiveness of repeated pasteurization using an air absorbent. The effectiveness of repeated pasteurization is studied at an air absorbent for prolonging the storage life of sausage products. Pasteurization was realized at temperature 85–90 °С during 15–20 minutes. The obtained results of the stability of quality indices of sausage products in storage terms up to 94 days corresponded to standard values for this product type. According to organoleptic parameters, products correspond to requirements of normative documents and have high quality indices during the indicated storage term. At the end of the storage term the deviation of the quality index of organoleptic parameters by the five-point scale was no more 0,09 units for pasteurized products with an air absorbent. The decrease of the index of the average point mark for pasteurized products without an air absorbent was 0,17 units. It proves the high stability of the quality of sausage products at the storage process. The conducted analysis as to the change of the water activity index in storage terms for pasteurized wieners with an air absorbent proves that its use doesn’t essentially influence awvalue. This effect is proved by the microbiological and organoleptic stability of sausage products at storage. Метою досліджень було визначення ефективності повторної пастеризації з використанням повітряного абсорбенту. Ефективність повторної пастеризації вивчається на повітряному абсорбенті для продовження терміну зберігання ковбасних виробів. Пастеризацію здійснювали при температурі 85–90 ° С протягом 15–20 хвилин. Отримані результати стабільності показників якості ковбасних виробів у термінах зберігання до 94 днів відповідали стандартним значенням для даного виду продукції. За органолептичними показниками продукція відповідає вимогам нормативних документів і має високі показники якості протягом зазначеного терміну зберігання. Наприкінці терміну зберігання відхилення показника якості органолептичних параметрів за п'ятибальною шкалою становило не більше 0,09 одиниць для пастеризованих продуктів з повітряним абсорбентом. Зниження індексу середньої точки для пастеризованих продуктів без поглинання повітря склало 0,17 одиниць. Це доводить високу стабільність якості ковбасних виробів при зберіганні. Проведений аналіз зміни показника водної активності в умовах зберігання пастеризованих сардельок за допомогою повітряного абсорбенту доводить, що його застосування суттєво не впливає навартість. Цей ефект підтверджується мікробіологічною і органолептичною стабільністю ковбасних виробів при зберіганні.
Non-thermal methods for whole milk treatment
(2016) Ukrainets, Anatoliy; Marynin, Andriy; Sviatnenko, Roman; Pasichnyi, Vasyl; Kochubei-Lytvynenko, Oksana
Серед продуктів харчування значне місце належить рідким харчовим продуктам: безалкогольним напоям, пиву, молоку, натуральним винам тощо. Відомі технології подовження термінів зберігання цих продуктів базуються на термічному обробленні (пастеризація та стерилізація), застосуванні ультрафільтрації, добавках до продукту різних за своєю природою хімічних консервантів. При цьому харчові та органолептичні властивості рідких харчових продуктів суттєво погіршуються. Перспективним напрямом підвищення термінів зберігання цих продуктів є застосування електрофізичних методів а саме сильних імпульсних електричних полів без розрядів. Among food products, a significant place belongs to liquid food products: non-alcoholic beverages, beer, milk, natural wines and the like. There are known the technologies for lengthening the shelf life of these products, that are based on thermal processing (pasteurization and sterilization), the use of ultrafiltration, and adding to the product of various chemical preservatives in nature. In this case, the food and organoleptic properties of liquid food products significantly deteriorate [1]. A promising direction of increasing the shelf life of these products is the use of electrophysical methods, namely strong pulsed electric fields without discharges.
Physico-chemical and rheological indicators of meat pates with corn starch suspensions prepared with electrochemically activated water
(2023) Marynin, Andriy; Shpak, Vladyslav; Pasichnyi, Vladyslav; Sviatnenko, Roman; Shubina, Yevgenia
The aim of the study was to determine the influence of electrochemically activated water application on the rheological properties of corn starch suspensions and pates prepared with them. Corn starch suspensions were prepared on artesian water, which was activated by electrochemical treatment on a diaphragm electrolyzer. Physico-chemical characteristics of electrochemically activated water were determined using a Palintest 7500 photometer. Morphological studies of starch granules were carried out by scanning electron microscopy, and granulometric composition was determined by laser diffraction method. The rheological indicatorss of starch suspensions and pates were studied using a Kinexus Pro+ rheometer. The physico-chemical characteristics of electrochemically activated water except pH met the requirements of the European Parliament and Council Directive on the quality of water intended for human consumption. The water absorption capacity of starch when preparing its suspensions on a catholyte (obtained by passing a direct electric current through water in the cathode chamber of an electrolyzer) decreased by 26%, and when prepared on an anolyte (obtained in the process of water oxidation reactions on the anode) increased by 18%. The moisture holding capacity of hydrated starch decreased by 10% when using catholyte, and increased by 36% when using anolyte. Electrochemically activated water had a significant effect on the rheological characteristics of starch suspensions: with an increase in the percentage of complex shear strain, the shear stress increased proportionally for samples of suspensions made on electrochemically activated water. The viscoelastic properties of starch suspensions prepared using electrochemically activated water both at 25 ℃ and at 68 ℃ tended towards an ideally elastic gel, that is, they had more elastic structure than the control samples. Under the action of shear deformation, the elastic properties were lost, while the suspensions acquired viscosity (phase angle values increased). The maximum value of the moisture binding capacity of pates was observed when using a starch suspension prepared on anolyte. The best values of rheological characteristics of pates were obtained when using starch suspension with 2% starch prepared on anolyte. Electrochemically activated water had a significant effect on the physicochemical and rheological properties of semi-finished products, in particular corn starch suspensions, and pates prepared with them, and contributed to better structuring of the studied food systems.
The study of electrophysical processing impact on the amino - acid composition of whole milk
(2017) Sviatnenko, Roman; Marynin, Andriy; Pasichnyi, Vasyl; Kochubei-Lytvynenko, Oksana
Серед продуктів харчування значне місце належить рідким харчовим продуктам: безалкогольним напоям, пиву, молоку, натуральним винам тощо. Відомі технології подовження термінів зберігання цих продуктів базуються на термічному обробленні (пастеризація та стерилізація), застосуванні ультрафільтрації, добавках до продукту різних за своєю природою хімічних консервантів. При цьому харчові та органолептичні властивості рідких харчових продуктів суттєво погіршуються. Перспективним напрямом підвищення термінів зберігання цих продуктів є застосування електрофізичних методів а саме сильних імпульсних електричних полів без розрядів. Among the foodstuffs, a significant place belongs to liquid food products: non-alcoholic beverages, beer, milk, natural wines, etc. The known technologies for lengthening the storage time of these products are based on thermal treatment (pasteurization and sterilization), the use of ultrafiltration, additives to the product of different nature by chemical preservatives. In this case, the nutritional and organoleptic properties of liquid food products are significantly deteriorating. The promising direction of increasing the storage time of these products is the use of electrophysical methods, namely strong impulse electric fields without discharges.
The study of the abiloity of soy isolates of different trademarks to interact with water molecules
(2021) Fursik, Oksana; Bandura (Kuzmyk), Uliana; Sviatnenko, Roman; Marynin, Andriy; Strashynskyi, Igor; Pasichnyi, Vasyl
The established ability of soy isolates to absorb and hold water molecules was mainly due to the predominant amount of globular proteins, which showed a high ability to hydrate, provide high solubility, viscosity of experimental systems and they were characterized by high functional and technological properties (FTP): water-binding, fat-absorbing and emulsifying abilities, were able to form gels, structured matrices, stabilize emulsions, and also have high solubility, salt and heat resistance. This is one of the indicators which helps to combine their physical characteristics with raw meat materials. Due to the complex of properties, soy isolates remain one of the best protein preparations for the production of meat products.