Tea oil contains no erucic acid and cholesterol. According to the test, the content of unsaturated fatty acid in tea oil is over 90%, oleic acid is 80-83%, linoleic acid is 7- 13%, and it is rich in protein and vitamins A, B, D and E, etc. In particular, its rich linolenic acid is necessary for human body but cannot be synthesized.
Extended data:
extraction method
1, mechanical pressing method
Mechanical pressing is the basic method to extract camellia oil. Tea seed pressing has gone through several stages, such as soil pressure (mainly wedge pressure), hydraulic pressing and screw pressing. According to the different temperatures in the press chamber of tea seeds during pressing, the first two methods are usually called low-temperature pressing method, and the latter is called high-temperature pressing method.
2. Low temperature pressing method
Tea seed oil in rural areas of tea seed producing areas, hydraulic oil pressing technology is often used to extract tea seed oil. The crude tea oil obtained by this process has few impurities and light color, which is the mainstream technology for extracting and preparing tea seed oil at present. Hydraulic oil press has two structures: vertical and horizontal, and horizontal hydraulic oil press is the majority in actual production.
3. High temperature pressing method
The high-temperature pressing method mainly adopts screw oil press for dynamic pressing. The instantaneous squeezing temperature of oil in the squeezing chamber is relatively high, which has an impact on both oil and cake. For example, crude tea oil has many impurities and dark color, which reduces the refining rate of tea oil. Therefore, it is technically required to shell the tea seeds for spiral oil pressing.
Baidu encyclopedia-camellia oil