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Updated: Jun 2, 2026

Microwave-Assisted Extraction of Phenolic Compounds and Antioxidants for Cosmetic Applications Using Polyol-Based Technology
Published on: August 23, 2024
Enrichment of mayonnaise with plant-based antioxidants enhances phenolic bioaccessibility and oxidative stability
Mutasem Razem1, Rajat Suhag1, Amal Buddhika1
1Faculty of Agricultural, Environmental and Food Sciences, Free University of Bolzano, Piazza Università, 1, Bolzano 39100, Italy.
Abstract:
This study aimed to investigate the in vitro bioaccessibility and antioxidant activity of Satureja montana (SM) and Lavandula × intermedia (LI) plant extracts incorporated in mayonnaise. Ultrasound-assisted extraction from both plants was optimized via response surface methodology. HPLC-HRMS characterization of the optimal extracts showed high levels of rosmarinic, lithospermic, and salvianolic acids in SM and glycosylated hydroxycinnamates in LI. In a mayonnaise model, SM and LI extracts both extended oxidation induction time achieving an inhibition rate constant of 2.2 × 104 and 1.7 × 104 M-1 s-1, respectively, both exceeding BHT (1.2 × 104 M-1 s-1). In vitro digestion of the enriched mayonnaise improved the bioaccessibility of phenolics and flavonoids by 285 % and 295 % for SM and 445 % and 280 % for LI. These findings demonstrate that oil-in-water emulsions preserve extracts functionality, and increase gastrointestinal release, supporting the application of plant-based extracts as natural antioxidants in functional foods.
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