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Peanut oil production process

September 26, 2021

Peanut oil contains more than 80% of unsaturated fatty acids (41.2% of oleic acid and 37.6% of linoleic acid). It also contains 19.9% of saturated fatty acids such as palmitic acid, stearic acid and arachidic acid. Oleic acid can lower total cholesterol and harmful cholesterol in the blood. The big difference between it and polyunsaturated fatty acids is that while reducing total cholesterol and harmful cholesterol, it does not reduce beneficial cholesterol. Therefore, the peanut oil diet is almost the same as the olive oil diet and plays a reasonable role in preventing cardiovascular diseases. Therefore, eating peanut oil often can relieve cardiovascular disease.

 Peanut oil

Peanut oil production process:

(1) Acceptance of raw materials and auxiliary materials: inspect the raw materials and auxiliary materials shipped into the company, including peanuts, 6# solvent, phosphoric acid, liquid caustic soda, citric acid, clay, etc.

(2) Storage: The peanuts are stored in an insulated warehouse, and mechanical ventilation can be implemented to avoid moldy peanuts during storage. For peanuts that have accidentally become moldy, they usually form a small amount of agglomeration at the bottom of the warehouse, which can be removed by a sieve during clearing. Under the condition that the products it produces do not affect the specific performance and meet the relevant standards, it will sell at a reduced price. Otherwise, it is treated as scrap.

(3) Magnetic separation: Use magnets to remove magnetic impurities in raw materials.

(4) Grading and screening: Separate large peanuts and small peanuts by grading, remove the fried seeds of large peanuts, and squeeze small peanuts.

(5) Screening: Using the difference in particle size and weight between peanuts and impurities, with the help of the relative movement of peanuts and impurities on the screen surface, a plane rotary sieve with a specification of 18╳22 is used to remove large and small impurities and light impurities in peanuts.

(6) Crushing: Use a crusher to crush the peanuts into 4 to 6 segments, so that they have the required particle size to meet the conditions of the rolling embryo. The crushed oil is required to have a uniform particle size, no oil, no agglomeration, and less powder.

(7) Rolling blank: A single pair of rolling blanking machine is used to roll the blank to form a thin and uniform blank. The billet is required to have a small powder degree, no oil leakage, and a thickness of 0.5 mm or less.

(8) Steaming and frying: Destroy the cell structure of the oil, denature the protein, and swell the phospholipid by absorbing water to meet the requirements of squeezing, speeding up the oil yield and reducing the phospholipid content.

(9) Hydration and degumming: Phospholipids absorb water to condense and precipitate.

(10) One filter: remove impurities and part of phospholipids.

(11) Second filtration: Removal of phospholipids meets national standards.

If you want to know the peanut oil processing technology, please feel free to contact us!