How To Make Groundnut Oil?

Groundnut oil, also known as peanut oil, has a kind of light yellow transparent edible oil with clear color and lecture, pleasant fragrance, good taste and relatively easy to degest. It is a mild tasting vegetable oil expressed from groundnut kernels. Groundnut oil is widely used in cooking, including frying, basting, and the manufacture of margarines and shortenings.  It is not only widely used in China, South and Southeast Asia, it is also popular in the United States. The edible oil processing is actually not as difficult as you may imagine. Groundnut oil processing process, based on mechanical pressing technology, is generally grouped into three stages: groundnut seeds preparation, groundnut pressing and rude groundnut oil refining.

Peanut Oil Health Benefits

Peanut oil has a high smoke point so it can be used for high temperature cooking. In addition, it has a pleasing taste that can add additional character to a dish. What are the benefits of peanut oil? Is it a healthy option for cooking?

Peanut oil contains more than 80% unsaturated fatty acids (including 41.2%oleic acid and 37.6%linoleic acid). It also contains 19.9% of palmitic acid, stearic acid, arachidic acid and other unsaturated fatty acids. The fatty acid composition of peanut oil is relatively good, therefore it is easy for human bodies to digest and absorb. According to scientific data, the use of peanut oil can make the body's cholesterol into bile acids and excreted, thereby reducing the plasma cholesterol levels. In addition, the peanut oil also contains sterol, wheat germ phenol, phospholipids, vitamin E, choline and other beneficial substances for human. Regular consumption of peanut oil can prevent the skin wrinkle aging, protect the vessel wall, prevent thrombosis, help prevent atherosclerosis and coronary artery disease. The choline in peanut oil can also improve the memory of the human brain and slow down brain function decline.

First, Groundnut Seeds Preparation

Peanuts/groundnuts should firstly be shelled and need a through cleaning process to remove sand, stalk, plant debris and any other impurities. The groundnut seeds need a thorough cleaning process to remove sand, stalk, plant debris and any other impurities. And then for the post cleaning, the groundnut seeds have to be prepared for pressing, which usually involves size reduction of the groundnut seeds by breaking them and then conditioning by adjusting their moisture content and temperature, while keeping the seeds hot for a period of certain minutes.

Second, Groundnut Oil Pressing

The well prepared seeds are conveyed to the screw pressing machine, which is the most popular method of groundnut oil production. The machine’s screw warm pressed the groundnut seeds as it moves to advance where the space is smaller and smaller. Due to strong frication and high pressure, groundnut oil is pressed out. Besides, as the temperature in the machine’s pressing chamber rises, the output rate of groundnut oil also increases. Finally, the fresh groundnut oil seeps out through the small openings in the bottom of the pressing chamber.

Third, Raw Groundnut Oil Refining

The fresh rude groundnut oil obtained from the pressing machine is clarified in a setting tank and then pumped through the filter press. The filtered crude groundnut oil will be pumped to the refinery for three stages of refining: neutralization, bleaching and deodorization.

Zhengzhou Double-lion Grain & Oil Milling Machinery Co.,ltd. is dedicated in oil press machine design & manufacturing. Cooperating with Henan University of Technolog，it has carried out the new technological research and application of oil machinery, screw oil press machine, integrated oil press machine, hydraulic oil press machine, soybean oil press machine, sesame oil press machine, rapeseed oil press machine, palm oil press machine, etc., and transformed the latest scientific achievements into productive forces to obtain good social and economic benefit. Many foreign friends have established an long-term cooperative relationship with us.

Need guidance to start an oil press machine business? Please contact us, our engineer will give you professional guidance and suggestion.

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