An oil's susceptibility to oxidative damage typically is determined by just two main things:
Its concentration of polyunsaturated fatty acids, which usually often snore (react with oxygen).
The existence of antioxidants, that counteract the oxidative damage (that's the reason they're called anti-oxidants).
As summarized above, Olive Oil is saturated in polyunsaturated fatty acids (about 11 percent ) and full of antioxidants.
A handful of reports have exposed Olive Oil in high heat areas for prolonged spans of time and measured, the way that it affects the quality and nutritional properties of the oil. A sizable percentage of these scientific studies used a temperature for a exact long period of time. But under these extreme conditions, Olive Oil did fairly excellent.
One analyze actually strong fried a variety of different sorts of Olive Oil for 24 hrs and noticed that it was highly resistant to oxidation.
It has been found that Olive Oil does not oxidize once used for cooking while vegetable oils such as sunflower oil do oxidize and actually form harmful chemicals. 1 research displayed that eating a meal with heated Olive Oil increased oxidative markers from the blood when compared into a meal with unheated Olive Oil.
Additionally, in this particular study, the Olive Oil was perhaps not Extra Virgin Olive Oil and it was cooked for 2 hours per day.
Furthermore, it is also a delusion that heating Olive Oil leads for the formation of trans fats. In 1 research, frying Olive Oil 8 days in a row just increased the trans fat articles from 0.045percent to 0.082%, still a minimal amount.
Overall. It appears that Olive Oil is very stable, even under severe conditions such as deep frying for protracted amounts of time.