There are many types of trees that can extract oil from their fruits. Here are some common examples:
1. Camellia oleifera (Camellia oleifera): Camellia oleifera is a small evergreen tree in the Camellia family, named after its seeds that can extract oil (tea oil) for consumption. Tea oil has a clear color, fragrant taste, rich nutrition, and is resistant to storage, making it a high-quality edible oil; It can also be used as lubricating oil and rust proof oil in industry.
2. Wutong tree: The seeds of wutong tree (wutong seeds) can be cooked for eating or pressed for oil. Wutong tree is a very common tree. Its trunk is tall and strong, and its branches and leaves are luxuriant. It has strong resistance to sulfur dioxide, chlorine and other toxic gases.
3. Wen Guan Guo: Wen Guan Guo is a deciduous shrub or small tree, and its seeds can be used to extract oil for lighting Buddhist lamps in temples. It is very durable and long-lasting. Wenguan fruit can also be consumed as cooking oil.
4. Cannabis seeds (castor beans): Cannabis seeds belong to the seed of the mulberry plant Cannabis, and the fruit usually ripens from October to November. After peeling off the outer skin of its seeds, it can be used to extract oil, which has a very high viscosity and is a very important industrial raw material.
5. Muzishu: Muzishu belongs to the Camellia family and is a small evergreen tree. Its seeds can be used to extract oil (catalpa oil) for consumption, and it is one of the four major woody oil crops in the world. Muzi tree grows in the high mountains and hilly areas of southern subtropical regions in China, and is a unique natural high-grade oil crop in China.
6. Melia azedarach: Melia azedarach is a deciduous tree in the Meliaceae family. After collecting and selecting its seeds, they can be dried and used to extract oil. The Chinese toon tree is widely distributed in tropical and subtropical regions of Asia, and is also cultivated in temperate regions. It prefers warm and humid climates, is resistant to cold, alkali, and barrenness, and has strong adaptability.
7. Hazelnut tree: The seeds of hazelnut trees can be consumed and used for oil extraction. Hazelnut tree is one of the four major dried fruits in the world.
8. Huanglian wood: Huanglian wood is a plant in the family Anacardiaceae and genus Coptis. It produces fruit in autumn and is a good material for oil extraction.
9. Palm tree: The seeds of palm trees can be used to extract oil and are the main raw material for food and industry. Palm trees belong to the palm family and are evergreen trees, with a height of up to 7 meters.
10. Lotus magnolia: Lotus magnolia, also known as magnolia, magnolia, etc., is an evergreen tree. Its seeds can be used for oil extraction, with an oil content of up to 42.5%.
The fruits of trees such as peanuts, rapeseed, sesame, soybeans, cotton, sunflowers, olives, and oil palm trees can also be used for oil extraction, but these are mainly crops or economic crops rather than traditional trees.
There are many types of trees that can extract oil from their fruits, which have wide applications in fields such as food, industry, and medicine.