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Постійне посилання колекціїhttps://dspace.nuft.edu.ua/handle/123456789/7522
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18 результатів
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Документ Research on the effect of super high frequency field on green tea extraction and extract quality(2020) Rubanka, Kateryna; Bessarab, Alexander; Terletska, VitaThe article characterises non-brick green tea as a product of mass consumption. It has been described how practical it is to produce liquid extracts based on it and use them further in the non alcoholic drinks technology. Achieving high yields of extractives from tea requires intensification of the mass transfer process. The analysis of scientific sources has shown that pre-treatment of raw materials is one of the most promising methods for this purpose. The article presents comparative characteristics of green tea extracts obtained using pre treatment in the super high frequency field and of ones produced without it. The optimal power of the super high frequency field for extracts heated up to 60°С has been selected and analysed. If the energy of super high frequency is applied to a fresh mixture of tea and an extractant, with its further extraction in a rotary extractor IKA-RV-10 at the dilution 280 mBr, the yield of extractives doubles. The action of the microwave field leads to a 40% increase in the content of extractives in the resulting extract: the yield of phenolic substances increases by 44%, of caffeine by 45%, of substances with vitamin P activity by 23%, compared with the extracts produced without additional treatment. However, the chlorophyll and aldehyde content decreases. Pre-treatment with super high frequency energy in the course of green tea extraction helps effectively extract phenolic compounds like catechins that affect the taste of final beverages. This technique allows doubling the yield of catechins. Besides, it has been confirmed that the chemical composition (namely the quantity of hydroxyl groups in the catechin structure) determines the intensity of the transition of catechins into the composition of the extract. The findings on the safety of the extracts obtained have allowed establishing that though the contents of mercury, arsenic, lead, copper, and iron increase, they do not exceed the maximum permissible concentrations. This proves the safety of the extracts produced. The research results obtained make it possible to intensify the plant extract production technology without using any special extractors.Документ Biological value of tomato processing by-products(2021) Benderska (Dushchak), Olga; Bessarab, Alexander; Shutyuk, Vitaliy; Iegorov, Bogdan; Kashkano, MarianaThe article analyzes the biological value of secondary products of tomato processing, namely tomato seeds, which, for the most part, is not considered as an object of processing. The use of secondary raw materials formed in the production of tomato products as a source of biologically active substances with their subsequent use in food technology is proposed. The results of theoretical and experimental studies of the biological value of tomato seeds. It has been found that tomato seeds have a high nutritional and biological value due to the high concentration of proteins, lipids, and carbohydrates. У статті проведено аналіз біологічної цінності вторинних продуктів томатопереробки, а саме томатного насіння, що, здебільшого не розглядається в харчовій промисловості як об’єкт перероблення. Запропоновано застосування вторинної сировини, що утворюється при виробництві томатопродуктів – томатного насіння, – як джерела отримання біологічно активних речовин з подальшим їх використанням в технологіях харчових продуктів. Наведено результати теоретичних та експериментальних досліджень фізико-хімічного складу томатного насіння.Документ Study of the use of edible powders in tomato sauce technologies(2018) Benderska (Dushchak), Olga; Bessarab, Alexander; Shutyuk, VitaliyIn the article, the technology is considered for the production of edible powders from vegetal raw materials (berries). The technology for producing powders from berries is developed to produce a high-quality product in which all ingredients of raw materials are kept in a concentrated form.Документ Research of fatty acid composition of tomato seeds(2018) Benderska (Dushchak), Olga; Bessarab, Alexander; Shutyuk, VitaliyIn the article, the technology is considered for the production of edible powders from vegetal raw materials (berries). The technology for producing powders from berries is developed to produce a high-quality product in which all ingredients of raw materials are kept in a concentrated form.У статті розглянуто технологічні властивості харчових порошків із ягід. Наведено результати теоретичних та експериментальних досліджень якості порошку із чорниці, отриманого методом сушіння з використанням валкової сушарки та подальшим його подрібненням. Дослідження показали, що порошок чорниці є багатим джерелом вітамінів, антиоксидантів та комплексів фенольних сполук.Документ Cryogenic technology of fine-dispersed powdered additives from topinambour(2015) Pavlyuk, Raisa; Pogarskaya, Viktoriya; Bessarab, Alexander; Borisova, Alina; Balabay, EkaterinaThe cryogenic technology of fine-dispersed powdered additives from artichoke wafers is proposed and developed, which differs from the traditional use of cryogenic "shock" freezing, low-temperature mechanical grinding and sublimation drying, which allows more complete removal of biologically active substances from the state bound to nanocomplexes into free and to destroy a significant part Polysaccharide inulin to individual monomers - fructose.Документ Research of drying of brewer pellets aimed at increasing of its efficiency and lowering of power consumption(2016) Sukmanov, Valeriy; Bessarab, Alexander; Shutyuk, Vitaliy; Stefanov, StefanThis paper presents the results of research of the drying process in the brewer pellets in aerovibrofluidized bed. The kinetics of drying of pellets in the suspension bed has been experimentally studied. We have received the generalized drying curve of brewer pellets at different process conditions. The generalized drying curve received as a collocation of the drying curves of brewer pellets at different process conditions is an indication of constant value of speed multiplied by time of drying, which simplifies the calculations of changes in moisture content during certain periods of the heat treatment of the product.We offered the relative ratio of energy consumption; proportionality factor of performance and bed depth; qualified expenditure power consumption indicator, which allow to reasonably choose conditions of brewer pellets drying and significantly improve the value of energy saving performance indicators of the drying process. There have also been introduced the parameters of qualified expenditure power consumption and the non-dimentional coefficient of power consumption.Документ The research of the amount of heavy metals and nitroso compounds in concеntrated tomato products(2016) Shutyuk, Vitaliy; Vasylenko, Sergei; Bessarab, Alexander; Benderska (Dushchak), OlgaThe constant selling race results in need for improving the quality of nutrition products among in-house food and pharmaceutical processing industries, which is an all-important key to success on the consumer market. This requires constant improvement of the product producing technologies. The topical problem of quality is the presence of heavy metals and nitroso compounds in the products. The topical problem of quality is the presence of heavy metals and nitroso compounds in the products. The research aimed at studying the changes in the heavy metal concentration levels (including Zn, Cu, Pb) in tomato products at their thickening has been conducted at the national University of Food Technologies.Документ Intensification of mass transfer processes in gas-liquid media by discrete - pulse energy input method(2016) Bessarab, Alexander; Obodovich, Alexander; Sydorenko, VitaliiThe aim of this study was the intensification of the aeration of culture media in a fermenter by the method of discrete - pulse input of energy, which is being implemented in a rotor - pulsating apparatus. The process of aeration of culture media in the technology of yeast Saccharomyces cerevisiae growing by discrete - pulse energy input. The mass transfer rate of oxygen was determined by the number of yeast biomass grown for cultivation period. Метою даного дослідження була інтенсифікація процесу аерації культуральних середовищ методом дискретно - імпульсного введення енергії, який реалізується в роторно - пульсаційному апараті. Досліджено процес аерації культуральних середовищ в технології вирощування дріжджів Saccharomyces cerevisiae методом дискретно-імпульсного введення енергії. Швидкість масоперенесення кисню визначалася за кількістю біомаси дріжджів, вирощених за період культивування.Документ Adsorption of heavy metals ions from liquid media by palygorscite(2015) Melnyk, Lyudmila; Bessarab, Alexander; Matko, Svetlana; Malovanyy, MiroslavДосліджено процес адсорбції природним мінералом палигорскітом важких металів із стічних вод і харчових продуктів (яблучний сік). Вивчено процеси вилучення міді, кадмію, свинцю, ртуті та цинку. Визначено раціональні технологічні параметри цих процесів. Встановлено механізм адсорбції важких металів з яблучного соку палигорскітом.Документ Analysis of variants of solid fuel production from sugar industry waste and conditions needed for its burning(2015) Shutyuk, Vitaliy; Vasylenko, Tatiana; Bessarab, Alexander; Samiilenko, SerhiiThe use of alternative fuel and energy resources should be considered as the strategic approach to solving energy issues of Ukraine’s economy. Currently the potential capabilities of growing sugar beet in Ukraine are twice as good as the need for sugar production support. On a total mass basis the major part of solid waste of sugar industry (up to 75…83 % in relation to the mass of processed sugar beet) accrues to pulp. Currently the most of pulp is not used and has to be taken to stockpiles or fields before the start of the new sugar campaign. Potentially, the amount of pulp which can be used for energy needs takes up 4,5…5 million tons per year, or in conversion to dry basis - 330…370 thousand tons. There are two possible ways of its use: use of dried pulp as secondary fuel and direct firing of pressed pulp.