Cooking oil is an essential part of our daily cooking, and without it, the taste of any food would be greatly reduced. Nowadays, consumers also have very high requirements for cooking oil, and cooking oil that is outstanding in flavor and nutrition will be more prevalent in the market.
Because of the increased demand, so now many manufacturers are beginning to produce edible oil. Edible oil is extracted from some plants, such as peanuts, soybeans, canola, etc., so what is this refining process called?
What is the process of refining oil called?
Professional technical article The 10 ten refining production lines in quality in 2021 show that the edible oil we eat daily is obtained after refining. The most common refining methods are the pressing method and leaching method. 90% of manufacturers use the leaching method. The leaching method can refine more oil. The process of oil refining is called extraction, degumming, neutralization, dewaxing, and deodorization, which specifically refers to the finishing process of edible oil.
The oil produced by the leaching method is also called leaching oil, which is to extract the oil with an organic solvent. The leaching method uses solvent oil to soak the oil raw materials after high-temperature extraction to extract the oil from an oil production process.
The initial leaching out of the “oil” is a mixture of organic solvents and grease, can not be eaten. It must go through a series of refining processes (dewaxing, degumming, dehydration, deodorization, deacidification, decolorization, and other chemical treatment) before eating.
Refining process of edible oil:
First, the oil is pressed into crushed thin slices → soaked in the organic solvent to dissolve the oil → heated to remove the organic solvent to make gross oil → chemical high-temperature refining degumming, decolorization, deodorization, and other refining processes → made into edible oil.
Edible oil refining process:
1. Distillation: Evaporate the organic solvents introduced in the extraction process by heating.
2. Degumming: Let the hot water (80°C) rinse the oil and stir it thoroughly and leave it to precipitate out the gum and protein.
3. Neutralization: or deoxidation, treating the oil with sodium hydroxide or sodium carbonate to remove free fatty acids, phospholipids, pigments, and waxes.
4. Bleaching: remove unattractive colors, use diatomaceous earth, activated carbon, activated clay to remove undesirable colors.
5. Dewaxing: or anti-freeze, improve grease transparency, lower the temperature and remove precipitated solids.
6. Deodorization: evaporate unstable compounds that may cause abnormal odor and taste by high temperature and high-pressure steam.
7. Preservative: add preservatives to help the oil remain stable.
The refining process of edible oils is complex and requires several steps, also known as the finishing process of edible oils. Edible oils processed using the leaching method are generally lighter in color and have little or no significant initial natural odor from the seeds of the material. In fact, most edible oils on the market today are extracted using the leaching method, which is also the most used refining method by manufacturers.
The leaching process extracts almost all of the oil from the oilseed and is very economically efficient, making it the most popular processing method in the modern oil industry. Under the premise of using the leaching method, manufacturers who want to produce higher quality edible oil, you need to refine the process of leaching method, and oil refining equipment will be very important influencing factors.
Refining oil production line will be of great help to manufacturers as quality refining equipment can make full use of the oil, reduce the waste of raw materials and make the edible oil produced with higher quality.
The Refining oil production line consists of a refining tank, decolorizing tank, filter, oil pump, and electric control system. It can realize the functions of gum removal, acid removal, drying, and decolorizing of gross oil. The line can realize integrated flowing operation, high production efficiency, no manual intervention, and reduce the cost of production effectively.
The production line is reliable in quality, stable in operation, simple in operation, small in area, and high in technology. It can process and produce various types of edible oil. It is an ideal equipment for manufacturers to expand the market scale and improve economic benefits. If you also want to get high profits in the oil refining industry, welcome to contact us, you will surely reap a surprise!