1. Peanut oil Peanut oil is light yellow and transparent, its color is clear, its smell is fragrant, and its taste is delicious. It is a kind of edible oil that can be easily digested. Peanut oil contains more than 80% of unsaturated fatty acids (including 41.2% of oleic acid and 37.6% of linoleic acid). It also contains 19.9% ​​of saturated fatty acids such as palmitic, stearic and arachidic acids.
From the above content, the composition of peanut oil is relatively good, easy to digest and absorb. According to foreign sources, the use of peanut oil can decompose cholesterol in the body into bile acids and excrete it, thereby reducing the plasma cholesterol level. In addition, peanut oil also contains sterols, wheat germ phenol, phospholipids, vitamin E, choline and other beneficial substances on the human body. Regular consumption of peanut oil can prevent skin aging, protect blood vessel walls, prevent thrombosis, and help prevent arteriosclerosis and coronary heart disease. Choline in peanut oil can also improve the brain's memory and delay brain function decline.
2. Rapeseed oil Rapeseed oil is generally dark yellow or brown. The rapeseed oil contains 0.4-1.0% of arachidic acid, 14-19% of oleic acid, 12-24% of linoleic acid, 31-55% of erucic acid, and 1-10% of linolenic acid. From the perspective of nutritional value, the body's digestion and absorption rate of rapeseed oil can be as high as 99%, and it is advantageous for gallbladder function. In the pathological state of the liver, rapeseed can also be normal metabolism of the human body. However, rapeseed oil lacks essential fatty acids such as linoleic acid, and the fatty acids in it are unbalanced, so their nutritional value is lower than that of common vegetable oils. In addition, rapeseed oil contains large amounts of erucic acid and mustard glycosides, which are generally considered to be detrimental to human growth and development. If it is eaten with a good edible oil rich in linoleic acid, its nutritional value will be improved.
3, sesame oil sesame oil has ordinary sesame oil and small sesame oil, they are sesame oil as raw material obtained by the oil. The oil extracted from sesame, whether it is sesame oil or sesame oil, its fatty acids generally contain 35.0 to 49.4% of oleic acid, 37.7 to 48.4% of linoleic acid, and 0.4 to 1 of arachidic acid. 2%. The digestion and absorption rate of sesame oil is 98%. Sesame oil contains no harmful ingredients, but contains particularly rich vitamin E and rich linoleic acid. Regular consumption of sesame oil can regulate the permeation of capillaries, strengthen the absorption capacity of human tissues for oxygen, improve blood circulation, promote gonadal development, and delay aging to maintain spring green. Therefore, sesame oil is an excellent edible oil with good eating quality and high nutritional value.
4. Cottonseed oil refined cottonseed oil is generally orange or brown, fatty acid contains palmitic acid 21.6~24.8%, stearic acid 1.9~2.4%, arachidic acid 0~0.1%, oil Acids 18.0-30.7%, linoleic acid 44.9-55.0%, refined cotton clear oil removes gossypol and other toxic substances for human consumption. Cotton oil contains a large amount of essential fatty acids, and it is most suitable to be mixed with animal fat. Because the content of linoleic acid in cotton clear oil is particularly large, it can effectively inhibit the rise of cholesterol in the blood and maintain the health of the human body. The body's absorption rate of cotton clear oil is 98%.
5, sunflower oil Refined sunflower oil was clear and nice light yellow or blue-yellow, its smell is fragrant, pure taste. Composition of fatty acids in sunflower oil Due to climatic conditions, sunflower oil produced in cold regions contains about 15% oleic acid and about 70% linoleic acid; Sunflower oil produced in warm regions contains about 65% oleic acid, and linoleic acid 20 %about. The body digestibility of sunflower oil is 96.5%. It is rich in linoleic acid, which can significantly reduce cholesterol, prevent hardening of the blood vessels and prevent coronary heart disease. In addition, the highest physiologically active a-tocopherol content in sunflower oil is higher than that of normal vegetable oils. Moreover, the ratio of linoleic acid content to vitamin E content is relatively balanced, which facilitates absorption and utilization by the human body. Therefore, sunflower oil is an excellent edible oil with high nutritional value and beneficial to human health.
6, linseed oil Flaxseed oil, also known as flax oil. Linseed oil contains 9 to 11% of saturated fatty acids, 13 to 29% of oleic acid, 15 to 30% of linoleic acid, and 44 to 61% of linolenic acid. Linseed oil has a special smell and its eating quality is inferior to peanut oil, sesame oil and sunflower oil. In addition, due to the high content of linolenic acid, storage stability and thermal stability are both poor, and its nutritional value is also lower than that of oleic acid and oleic acid.
7. Safflower Seed Oil Safflower seed oil contains 6% saturated fatty acids, 21% oleic acid, and 73% linoleic acid. Because its main component is linoleic acid, its nutrition value is particularly high, and it can also prevent the deposition of human serum cholesterol in the blood vessel wall and prevent and cure atherosclerosis and cardiovascular diseases. In the pharmaceutical industry, safflower oil can be used to manufacture medicines such as "Yoshishouning" that prevent cardiovascular disease, hypertension, and cirrhosis. In addition, safflower seed oil also contains a large number of vitamin E, oryzanol, sterols and other medicinal ingredients, it is known as the emerging "healthy oil", "healthy nutrition oil."
8. Soybean oil Soybean oil has a darker color and has a special odor of bean pods; its thermal stability is poor, and it produces more foam when heated. Soybean oil contains more linolenic acid, which is easier to oxidize and degenerate and produce "bean odor." From the perspective of food quality, soybean oil is not as good as sesame oil, sunflower oil, and peanut oil. From the perspective of nutritional value, soybean oil contains palmitic acid 7 to 10%, stearic acid 2 to 5%, arachidonic acid 1 to 3%, oleic acid 22 to 30%, linoleic acid 50 to 60, and linolenic acid 5 to 9