21/12/2020
Olive oil is considered the most beneficial to human health in comparison with other vegetable oils as it is the oil that is called virgin, meaning that it was not subjected to any chemical treatment during its extraction from the fruits of olives and therefore it is the only vegetable oil that is extracted from fruits and not from seeds.
The benefits of olive oil are due to its chemical composition in terms of its fatty acid content, especially oleic acid, which is called the friend of the heart and protects the oil from oxidation during frying, in addition to its high content of antioxidants such as polyphenols and squalene, some sterols and vitamins such as vitamins E and K and plant pigments such as chlorophyll which It is considered to protect the human body from heart disease and cancer. There are many factors that affect the percentage of these substances in olive oil, which we review as follows: -
First: - the type
There are big differences between one class and another in its content of the substances mentioned above, which determine the usefulness of the oil
Second: - Chemical specifications
And here we mean the degree of acidity and peroxide, the higher they are, the less the benefits of the oil.
Third: - Agricultural transactions
Such as irrigation, where the benefits of oil in irrigated agriculture are less if the irrigation process is not controlled and stopped two weeks before harvesting. It was also found that the olives that were plowed give an oil of greater benefit. With regard to chemical fertilization, it was found that increasing the nitrogen element reduces the benefits of oil, and it was also found that organic fertilization is better than chemical fertilization in affecting the benefits of oil. Proper pruning also affects the benefits of the oil.
Fourth: - The current healthy for trees
Some diseases affect the benefits of oil, for example, it was found that having peacock eye disease increases the benefits of the oil, as its content of antioxidant polyphenols increases because it is the immune system of the tree. In general, whenever trees are exposed to stress due to thirst or high temperature, the benefits of the oil increase due to the increase in the antioxidants in the oil.
Fifthly: - The geographical location of the planting, the distance between the trees, and the orchard layout
Sixth: - Transactions inside the press
Seventh: - Method of storage and used containers
Eighth: - The life of the oil, the longer the oil, the less its benefits
Ninth: - The picking date, where we get the highest benefits in picking at the correct date
Tenth: The method of harvesting, collecting, and transporting fruits, and the period between picking and pressing
Eleventh: The type of squeezing and the softness of crunching in the garusha
Twelfth: - The type of soil and its fertility
This olive oil is a good source of omega 9 and 6 and is not considered a good source of omega 3
