1, cottonseed oil
Usage: stir-fry and stew.
Cottonseed oil is an oil made from cottonseed, which can be used for cooking and eating, and can also be used as raw material in industrial production.
Cottonseed oil contains a large number of essential fatty acids, among which linoleic acid has the highest content, which can reach 44.0-55.0%. Linoleic acid can inhibit cholesterol in human blood and protect human health. In addition, cottonseed oil also contains 2 1.6%-24.8% palmitic acid, 1.9-2.4% stearic acid, 18%-30.7% oleic acid, 0-0. 1% arachidonic acid.
2. Soybean oil
Usage: stir-fry and fry food.
Soybean oil is taken from soybean seeds, and soybean oil is the most productive oil in the world.
The color of soybean crude oil varies with the variety of soybean seed coat and soybean. Generally light yellow, slightly green, dark brown, etc. Refined soybean oil is light yellow.
Soybean oil contains a lot of linoleic acid. Linoleic acid is an essential fatty acid for human body and has important physiological functions. Children lack linoleic acid, the skin becomes dry, the scales thicken, and the development and growth are slow; The lack of linoleic acid in the elderly will cause cataracts and cardiovascular and cerebrovascular diseases.
Soybean crude oil has a fishy smell, which can be removed after refining, but it has a tendency of aftertaste during storage. The fishy smell of soybean is caused by linolenic acid and linolenic acid. By reducing the linolenic acid content to the minimum and avoiding the formation of linolenic acid, the soybean oil can be basically eliminated. Aftertaste? Phenomenon.
3. Rapeseed oil
Usage: stir-fry and fry food.
Rapeseed oil is an oil made from rapeseed by soaking, also known as? Vegetable oil? , is one of the edible oil varieties in China.
Rapeseed oil is dark yellow and slightly green, with unpleasant smell and spicy taste. Generally, it can be eaten only after degumming, deacidification, decoloration and deodorization. Rapeseed oil has high viscosity, minimum saponification value and high erucic acid content in semi-drying oil, which can be used to identify rapeseed oil.
Rapeseed oil has certain economic value. As an edible oil, its digestibility and utilization rate can reach 99%. In addition, it can also be used as lubricating oil, fire extinguishing oil, metal preservative and important raw materials for light chemical industry.