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Study on antioxidants extraction from oak bark and their use for oxidation stability of sunflower oil
(2021) Demydova, Anastasiia; Nosenko, Tamara; Bakhmach, Volodymyr; Shemanska, Evgenia; Molchenko, Svitlana
Suitable conditions of oak bark polyphenols extraction were developed in this study in order to use them as inhibitors of vegetable oil oxidation. It was shown that polyphenols of oak bark were effective as natural inhibitors of oil oxidation. It had been demonstrated that use of food acids in combination with a water-alcohol solvent and microwave field were effective for the enhancing of the extraction process of oak bark. The method of creation of the stable fat and hydrophilic antioxidants containing system was developed
Tocopherol concentrates obtaining from deodorizer distillates of sunflower oil
(2019) Demydova, Anastasiia; Nosenko, Tamara; Shemanska, Evgenia; Molchenko, Svitlana
The developed method for the obtaining of a tocopherol concentrate from a by-product of the refining of oils a sunflower deodorizer distillate is economically profitable in comparison with existing methods. Using of the developed method for tocopherols concentrates obtaining does not require a multi-stage approach, which usually includes the distillation of deodorizer distillates and esterification of fatty acids and other components. And the resulting concentrates of tocopherols were effective antioxidant