Year: 2025
Type: article
Abstract: Vegetable oils are important dietary sources of energy, essential fatty acids, and fat-soluble vitamins.They also contain various bioactive compounds such as tocopherols, phytosterols, and lignans.Lignans, a class of phenolic compounds, have been reported to exert antioxidant, anti-inflammatory, and cardioprotective activities, and have thus gained attention for their health-promoting potential.However, information on the lignan composition and antioxidant properties of vegetable oils commercially available in Korea is still limited.This study aimed to evaluate the lignan content and antioxidant activity of 12 vegetable oils marketed in Korea.Lignans were quantified using liquid chromatography-tandem mass spectrometry (LC-MS/MS) under the negative ion mode with multiple reaction monitoring, targeting six compounds: secoisolariciresinol, matairesinol, lariciresinol, pinoresinol, syringaresinol, and medioresinol.Antioxidant activity was assessed by measuring the total polyphenol content, radical scavenging capacity, and reducing power.Results showed that safflower seed oil contained the highest lignan content, mainly medioresinol and matairesinol, whereas lignans were not detected in canola, rice bran, or soybean oils.Olive oil exhibited the highest total polyphenol content and the strongest antioxidant activity, including both radical scavenging capacity and reducing power.Correlation analysis revealed a strong positive association between reducing power and total polyphenol content, and significant correlations were also observed between total polyphenol content and radical scavenging capacity.In contrast, lignan content showed no clear relationship with antioxidant activity.These findings provide baseline data on the functional properties of vegetable oils and may contribute to their nutritional and industrial applications.
Institutions: Kyungsung University, National Institute of Crop Science
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Funder: Rural Development Administration
Award: G2047866534
OpenAlex ID: W4415600861