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Документ Application of the Inverse Chronopotentiometry Method to Control the Content of Toxic Elements in Refining Production(2021) Melnyk, Oksana; Galimova, V.; Radzievska, Irina; Marynin, AndriyUkraine is one of the world leading exporters of sunflower oil. An important safety indicator is the content of toxic elements in it, which should not exceed the maximum permissible concentrations. Toxic elements entering the human body reduce the functions of individual systems and organs and lead to immunodeficiency. The toxic elements by which food products are controlled include copper (Cu), zinc (Zn), iron (Fe), cadmium (Cd), lead (Pb), arsenic (As), and mercury (Hg).Документ Investigation of vegetable oils to oxidative degradation of varying degrees of saturation with tocopherol(2018) Melnyk, Oksana; Radzievska, Irina; Galenko, Oleg; Peshuk, LudmilaThe content of tocopherol isomers and their activity in oils with different depth of refining-by pressing up unrefined and refined deodorized. It is shown that the isomeric composition of tocopherols influence on the rate and kinetics of elongation, and termination of radical chain oxidation. The relationship between the fatty acid composition of the oil, in particular the content of unsaturated fatty acids, the flow rate of peroxidation reactions and content of oxidation inhibitors. It is shown that a critical factor when braking oxidation reactions is the inhibitory effect of tocopherol, namely its greatest when the total content of a-isomer content.Документ Anomalous properties in aqueous solutions of polysaccharides(2014) Mank, Valeriy; Melnyk, Oksana; Bakhmach, VolodymyrThe study of physicochemical properties of suspensions of polysaccharides in a wide range of mechanical stress and temperature are important in justifying the technological conditions of production of quality food.