Chemical characterization of sunflower oil oxidized by UV and ozone with different degrees of oxidation and study of their antimicrobial action




Oxidation, Ozone, Spectroscopy, Sunflower oil, UV irradiation


Oxidation by the action of ozone takes place at high rates and involves the reaction of ozone molecules with fatty acid double bonds followed by the formation of stable oxidation products with biological activity. In the present work, a comparative study on sunflower oil oxidized by ultraviolet (UV) light and ozone was carried out. This study involved the chemical characterization of sunflower oil oxidized by UV irradiation and ozonation, in addition to assessing the germicidal activity of oxidized oils obtained under various conditions. The results indicated that under the conditions studied, the increase in the dose of UV irradiation did not produce significant changes in the level of oxidation of the oil. Ozonation promoted the formation of oxygenated compounds at higher rates, increasing in concentration as the applied dosage of ozone increased. The germicidal activity of the oils behaved similarly, with considerably higher activity found in the ozonized oils.


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How to Cite

Fernández-García L, Ledea-Lozano O, Fernández-Torres I, Jauregui Haza U, Garcés R, Martínez-Force E, Venegas-Calerón M, Salas J. Chemical characterization of sunflower oil oxidized by UV and ozone with different degrees of oxidation and study of their antimicrobial action. Grasas aceites [Internet]. 2023Dec.30 [cited 2024Apr.21];74(4):e524. Available from:




Funding data

Consejo Superior de Investigaciones Científicas
Grant numbers ICOOPCOOPB20153

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