What You Need to Know
The phenolic antioxidants in the oil, such as hydroxytyrosol and oleuropein, scavenge free radicals and inhibit lipid oxidation. Oxygen depletion in the sealed oil environment limits aerobic bacterial growth, while the low temperature slows metabolic rates of any residual microorganisms.
The Science
Primary Reaction
Oxygen depletion and antioxidant‑mediated inhibition of lipid oxidation