Strategies To Increase The Oxidation Stability Of Cold Preses Oils

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Strategies To Increase The Oxidation Stability Of Cold Preses Oils

Consumption of cold pressed oils rich in polyunsaturated fatty acids (PUFA) is considered healthy. These oils, on the other hand, are characterised by a lack of oxidative stability, which leads to the accumulation of lipid oxidation products, which have been found to have negative health effects. As a result, finding ways to improve the oxidative stability of PUFA-rich oils is crucial. Many factors, including sun exposure, heat treatment, oxygen accessibility, and the presence of antioxidants, have been demonstrated to influence the rate of lipid oxidation in edible oils. While many attempts have been made to extend the shelf life of edible oils by adding antioxidants and limiting factors that promote lipid oxidation, only a few studies have been conducted to assess the antioxidative effect of adding antioxidants to cold pressed oils by altering the production process. Advanced lipid oxidation end products (ALEs), which are created by the non-enzymatic interaction between lipid aldehydes and amino phospholipids, have been shown to have antioxidative properties in addition to the traditional antioxidants found in oils such as polyphenols and vitamin E. As a result, it is important to encourage the development of ALEs in PUFA-rich oil seeds, as well as their extraction from the seeds into the oil.

Fig.1. Strategies to increase the oxidative stability of cold pressed oils (ScienceDirect.com)

Traditional fat measurements, such as the peroxide value or the acid number, are solely used to determine the current state of fats and oils. They can only be used to generate limited predictions about a product’s remaining shelf life, which is an important factor to consider when determining the value of oils made for culinary applications.

Reference:

https://www.azom.com/article.aspx?ArticleID=19844

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