1. The principle of solidification of peanut oil

"Just like water will freeze at 0 degrees Celsius, liquid vegetable oil will solidify when the storage temperature is lower than a certain point. Peanut oil The melting point and freezing point are around 13°C. Because grease is a mixture of amorphous and crystalline structures, it will gradually become semi-solid as the temperature drops.

2. Any substance has fixed physical and chemical characteristics at low temperatures. When the temperature is lowered, pure peanut oil will produce a white flocculent suspension, and when the temperature is lowered, it will solidify like butter. This is one of its important characteristics. The temperature when a substance changes from solid to liquid is called the melting point, and the temperature when it changes from liquid to solid is called the freezing point. , the two are the same value.

3. Nutritional value

Peanut oil is light yellow and transparent, with clear color, fragrant smell and delicious taste. Peanut oil has a better fatty acid composition. It is easy for the human body to digest and absorb. According to foreign information, the use of peanut oil can decompose cholesterol in the human body into bile acids and excrete them from the body, thereby reducing the cholesterol content in plasma. In addition, peanut oil also contains sterols, wheat germ phenol, and phospholipids. , vitamin E, choline and other substances that are beneficial to the human body

4. Identification of peanut oil

Half of the viscosity of pure peanut oil has begun to solidify, and a large amount of soybean oil is mixed with it. Peanut oil is almost only slightly solidified at the bottom. Most of the oil mixed with palm oil is completely solidified, and the crystallinity is white crystals. Therefore, we can distinguish pure peanut oil from the sense of sight, and what is mixed with soybean oil and mixed with soybean oil. It is normal for the fake peanut oil to be mixed with palm oil.