Study Indicates Avocado Oil Could Fight Harmful Free Radicals Tied to Aging and Cancer

Lead researcher Christian Cortés-Rojo says, the findings, and the fact that México is the largest producer of avocados in the world, could promote the use of avocado oil or some of its components to reduce the socioeconomic impact of chronic degenerative diseases.

23 April 2012 --- A research team from the University of Michoacana de San Nicolás de Hidalgo in México believe they have produced the first research results showing the protective effects of avocado oil against free radicals in mitochondria.

The research team used yeast cells – those used in wine and beer production – to examine avocado oil's properties.

Lead researcher Christian Cortés-Rojo explained "The reason why we have chosen yeast," "is that this microorganism is easier to study than other biological models due to its relative simplicity and because studies our group published in 2009 and 2011 found that yeast mitochondria are very resistant to free radicals due to the sort of fat that forms its envelope, which is highly resistant to oxidation. The same kind of fat can be found in avocado oil; but, in addition, avocados also contain some plant pigments that inhibit oxidation. That is why we decided to test whether these avocado properties could increase even more the yeast's resistance to mitochondrial oxidation."

The results of this research, he says, show that avocado oil allowed the yeast cells to survive exposure to high concentrations of iron, which produces a huge amount of free radicals, "even to higher levels to those found in some human diseases."

He continues: "These results could be attributed to the fact that avocado oil caused accelerated respiration in mitochondria, which indicate that the use of nutrients for producing energy for cell functions remains effective even in cells attacked by free radicals and that mitochondria itself could produce little amounts of damaging free radicals."

Cortés-Rojo emphasized that these findings reinforce the good reputation the avocado has when it comes to health maintenance. He points to pioneering research by Mario Alvizouri-Muñoz, a doctor at the Morelia General Hospital, who demonstrated that avocado lowers the blood concentration of cholesterol and certain fats that are increased in diabetic patients and that may lead to stroke or heart attack.

"Our results are promising because they indicate that avocado consumption could improve the health status of diabetic and other patients through an additional mechanism to the improvement of blood lipids," he says. "We'll need to confirm that what has been observed in yeasts could occur in higher organisms, such as humans. We hope this will be the case, because there are many vital processes conserved in organisms that seem very dissimilar to humans."

Moreover, Cortés-Rojo says, the findings, and the fact that México is the largest producer of avocados in the world, could promote the use of avocado oil or some of its components to reduce the socioeconomic impact of chronic degenerative diseases. "In some Mediterranean countries, low or almost no appearance of these kinds of diseases has been associated with the high olive oil consumption," he explains. "Olive oil has a fat composition similar to that found in avocado oil. Therefore, avocado oil could eventually be referred to as the olive oil of the Americas."

Source: University of Michoacana de San Nicolás de Hidalgo

This feature is provided by Nutrition Insight’s sister website, Food Ingredients First.

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