The Chemistry of Extra Virgin Olive Oil Stability at High Heat
The stableness of extra Virgin olive oil(EVOO) when subjected to high heat is not merely a weigh of fume target it is a complex interplay of unit penning, phenolic compounds, and fat person acid profiles. Contrary to pop impression, EVOO corpse one of the most thermally stable cooking oils when decent selected and stored. Recent data from the International Olive Council(IOC) in 2024 reveals that the right way sublimate EVOO retains over 70 of its phenolic resin antioxidants even after 20 minutes of frying at 180 C, a temperature far above typical saut ing ranges. This stableness stems from the oil s high unsaturated fat (approximately 73 80), which resists oxidation more in effect than unsaturated fats ground in seed oils. Additionally, the front of hydrophilic phenols like oleocanthal acts as cancel metallic element chelators, further inhibiting oxidative degradation during energy stress.
The myth that EVOO degrades speedily at high heat originates from out-of-date studies that failing to account for 特級橄欖油 timber or storage conditions. A 2023 peer-reviewed meditate promulgated in Food Chemistry incontestible that EVOO stored in dark glass bottles and used within 12 months of reap retained 85 of its vitamin E and hydroxytyrosol content after 30 proceedings of pan-frying. The study also base that oils tagged with specific glean dates and low sourness(