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Загальна кількість знайдених документів : 5
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1.

Zhulinska O. 
Determining quality parameters of alcohol-free functional beverage by the procedure that employs affine transformations [Електронний ресурс] / O. Zhulinska, K. Svidlo // Technology audit and production reserves. - 2017. - № 3(3). - С. 49-55. - Режим доступу: http://nbuv.gov.ua/UJRN/Tatrv_2017_3(3)__10
Попередній перегляд:   Завантажити - 320.973 Kb    Зміст випуску     Цитування
2.

Ivanina O. P. 
The quantitative and qualitative indicators of milk the different breeds of sheep during manual and machine milking [Електронний ресурс] / O. P. Ivanina, O. S. Zhulinska // Вівчарство та козівництво. - 2019. - Вип. 4. - С. 103-114. - Режим доступу: http://nbuv.gov.ua/UJRN/vivkoz_2019_4_11
Попередній перегляд:   Завантажити - 510.344 Kb    Зміст випуску     Цитування
3.

Kalyna V. 
Development of soapstock processing technology to ensure waste-free and safe production [Електронний ресурс] / V. Kalyna, V. Koshulko, O. Ilinska, N. Tverdokhliebova, O. Tolstousova, O. Bliznjuk, T. Gavrish, S. Stankevych, I. Zabrodina, O. Zhulinska // Eastern-european journal of enterprise technologies. - 2021. - № 6(10). - С. 23-29. - Режим доступу: http://nbuv.gov.ua/UJRN/Vejpte_2021_6(10)__5
Soapstock is a large-tonnage waste of the oil and fat industry, the disposal of which is environmentally hazardous. Processing of soapstock into industrially valuable products, in particular, fatty acids, is promising. The method for producing fatty acids, which consists in sequential saponification of soapstock with sodium hydroxide solution, salting out with sodium chloride and decomposition with sulfuric acid solution has been investigated. The feature of this work is the study of the effect of salting out conditions of saponified soapstock on the yield and neutralization number of fatty acids. As an experimental sample, sunflower soapstock was used, the indicators of which correspond to DSTU 5033 (CAS 68952-95-4): mass fraction of total fat - 67,3 %, fatty acids - 61,8 %, neutral fat - 5,5 %. Soapstock was subjected to preliminary saponification under the following conditions: duration 85 min., concentration of sodium hydroxide solution 45 %. After that, the saponified mass was subjected to salting out. The obtained core soap was decomposed with the sulfuric acid solution under the following conditions: temperature 90 <^>oC, duration 40 min. Rational salting out conditions were determined: duration (80 min.) and sodium chloride concentration (16 %). Under these conditions, the fatty acid yield is 95,0 %, the neutralization number is 194,8 mg KOH/g. The resulting fatty acids comply with DSTU 4860 (CAS 61788-66-7): the mass fraction of moisture and volatiles is 0,85 %, the mass fraction of total fat is 98,9 %, cleavage depth is 94,2 % oleic acid. This method of soapstock processing increases the fatty acid yield by 3,5 % compared to the method with saponification and decomposition, by 20,3 % compared to the method of soapstock decomposition with sulfuric acid. At the same time, the neutralization number increases by 4,1 % and 8,2 %, respectively. The improved method for fatty acids producing from soapstock provides high-quality fatty acids with increased yield.
Попередній перегляд:   Завантажити - 433.512 Kb    Зміст випуску    Реферативна БД     Цитування
4.

Bliznjuk O. 
Determination of rational conditions for oil extraction from oil hydration waste [Електронний ресурс] / O. Bliznjuk, N. Masalitina, L. Myronenko, O. Zhulinska, T. Denisenko, S. Nekrasov, S. Stankevych, O. Bragin, O. Romanov, T. Romanova // Eastern-European journal of enterprise technologies. - 2022. - № 1(6). - С. 17–23. - Режим доступу: http://nbuv.gov.ua/UJRN/Vejpte_2022_1(6)__4
As a result of oil hydration, waste is formed - phosphatide concentrate, which is a multicomponent system. Valuable components of the concentrate are vegetable oil and phosphatides, the separation of which is an urgent task for the industry. The process of treatment of sunflower phosphatide concentrate with citric acid (hydration) in order to more completely convert non-hydrated forms of phosphatides into hydrated ones and separate the oil from the concentrate was studied. A feature of the work is the study of the dependence of the yield and mass fraction of moisture in the extracted oil on the hydration process parameters. A sample of phosphatide concentrate with non-standard quality indicators according to SOU 15.4-37-212:2004 (CAS 3436-44-0) was studied: the mass fraction of moisture and volatile substances was 4,0 %, the mass fraction of phosphatides was 37,0 %. The concentrate was treated with citric acid solution at a temperature of 45 <^>oC (10 % solution). Rational conditions for concentrate treatment were determined: duration (25 min) and citric acid concentration in relation to the mass of phosphatide concentrate (25 %). Under these conditions, the oil yield was 76,1 %, the mass fraction of moisture in the oil was 18,6 %. The indicators characterizing the suitability of the oil for consumption and its safety for the body are within the limits (acid value 3,7 mg KOH/g, peroxide value 5,1 1/2 Om mol/kg) for the first-grade unrefined unwinterized sunflower oil according to DSTU 4492. Such oil can be used for refining, fatty acids and biodiesel production, and after additional purification - for processing into food products. The results of the study make it possible to use resources rationally and predict the yield and quality of the oil isolated from the phosphatide concentrate. The resulting oil can be an affordable raw material for various industries.
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5.

Petik P. 
Determination of fat-soluble dyes influence on the oxidation induction period of their oil solutions [Електронний ресурс] / P. Petik, S. Stankevych, I. Zabrodina, O. Zhulinska, I. Mezentseva, I. Haliasnyi, T. Hontar, L. Shubina, O. Kotliar, S. Bondarenko // Eastern-European journal of enterprise technologies. - 2023. - № 3(6). - С. 13–21. - Режим доступу: http://nbuv.gov.ua/UJRN/Vejpte_2023_3(6)__4
Попередній перегляд:   Завантажити - 425.136 Kb    Зміст випуску     Цитування
 
Відділ наукової організації електронних інформаційних ресурсів
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