The finished groundnut oil sold in supermarkets can generally be divided into pressed groundnut oil and extracted groundnut oil. Pressed groundnut oil is the well-known oil press, and the groundnut oil extraction process is to extract oil through solvent extraction. These two processes are also the two processes used by groundnut oil mills today.
The oil content of groundnuts is above 40%, which is a high-oil contain, and the flavor of groundnut oil is very popular with the public. Therefore, most groundnut oil mills use the groundnut oil pressing process to produce groundnut oil, which can be processed into fragrant groundnut oil or pressed groundnut oil through different processes.
Groundnut oil mills process groundnut oil, from raw materials to oil, and need to go through multiple processes such as cleaning, stone removal, crushing, softening, flaking cooking, pressing, filtering, and refining. These processes have the following functions.
Cleaning and stone removal: This is to remove impurities such as stones, sand, and plant stem diameter mixed in during groundnut harvesting, transportation, and drying. This step can not only improve the quality of groundnut oil, but also avoid the adverse effects of impurities on equipment such as wear.
Crushing, softening, and flaking: Softening the crushed groundnuts can improve the oil content and reduce the powder content during flaking. Flaking can process groundnuts into thin slices, change the organizational structure of groundnuts, expand the surface area, shorten the oil path, and facilitate the extraction of oil.
Cooking: The purpose of cooking is to adjust the temperature and humidity of the groundnut embryo so that it can be better squeezed by the oil press to extract oil. The cooking process is also the source of the aroma of groundnut oil. The groundnut oil squeezed from the cooked groundnuts has a stronger aroma.
Pressing and refining: The pre-treated groundnut embryos are pressed by the oil press to obtain crude groundnut oil. According to the quality grade of groundnut oil required by the groundnut oil plant, the corresponding groundnut oil refining equipment and process are configured. The crude oil is refined and impurities are removed to obtain finished groundnut oil.
The above is the groundnut oil extraction process. The configuration of the groundnut oil production line needs to take into account the size of the investor's plant, output, quality, budget and other conditions, and then provide equipment configuration plans and quotations as needed.
Website: https://www.oilpresscn.com/
Email: info06@cnoilmachine.com