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Cottonseed oil is a vegetable oil extracted from cottonseeds. China is the world's largest cottonseed oil producer. Depending on the processing method and degree of refining, it can be divided into refined and crude cottonseed oils. Refined cottonseed oil is typically orange-yellow or brown in color and contains fatty acids such as palmitic acid, stearic acid, oleic acid, and linoleic acid, as well as nutrients such as vitamin E, sterols, and phospholipids.
It can be used in a variety of cooking methods, including frying, stir-frying, and deep-frying. However, due to its low smoke point, it easily produces fumes and harmful substances when heated, making it unsuitable for high-temperature, prolonged cooking. It can also be used to make salad oil, margarine, or shortening.
In the pharmaceutical field, cottonseed oil is often used as an oil carrier and can be taken orally as a mild laxative. It can also be used as a solvent for intramuscular injections, intravenous emulsions, and as an adjuvant for cholecystography.
It can be used in soaps, lubricants, paints, varnishes, fatty acids, cosmetics, and waterproofing products.
Cottonseed oil contains unsaturated fatty acids, particularly linoleic acid, which is absorbed by the human body at a rate of approximately 98%, providing energy and essential fatty acids.
It helps lower LDL cholesterol levels, increase HDL cholesterol levels, inhibit the rise of blood cholesterol, and prevent cardiovascular disease.
Antioxidants such as vitamin E neutralize free radicals, protecting cells from oxidative damage. Certain components can also inhibit the release of inflammatory mediators, alleviating symptoms such as tissue redness and swelling.
Linolenic acid in cottonseed oil can strengthen the skin barrier function and inhibit melanin production to a certain extent, resulting in a skin-whitening effect.
