New perspectives on the ozonated high-oleic sunflower oil physico-chemical behaviour.

ABSTRACT: Despite high-oleic sunflower oil (SFO) having strong antioxidant properties, there are very few studies regarding its physico-chemical characterization. In this study, SFO obtained through cold pressing, without prior chemical treatment, was subjected to an ozonation process. Simultaneously, a water-SFO emulsion (1:9 ratio) was prepared and ozonated in the same conditions. Both ozonated samples underwent physico-chemical evaluation (acid and peroxide values (AV, PV), rheological behaviour), structural analyses, and antioxidant properties evaluation. Through their AV and PV, the samples demonstrate excellent stability over time, from an AV of 3.073 to 3.723 mg NaOH/g oil and from a PV of 1439.36 to 1645.29 mmol/equiv/g oil over 6 months storage for ozonated SFO. The viscosity and flow activ

SUBMITTER: Petrovici AR 

PROVIDER: S-EPMC12916749 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature