An oil's susceptibility to oxidative damage typically depends on 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 why 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 subjected Olive Oil in high heat areas for lengthy spans of time and measured, the way that it affects the quality and nutritional properties of the petroleum. A sizable percentage of these scientific studies employed a temperature for a exact long period of time. But under these extreme conditions, Olive Oil did pretty excellent.
One analyze actually strong fried a variety of different sorts of Olive Oil for 24 hrs and noted that it was highly resistant to oxidation.
It has been found that Olive Oil does not oxidize much once used for cooking, even while vegetable oils such as sunflower oil do oxidize and actually form harmful compounds. 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.