Which Edible Oil Processing Method to Choose: Pressing or
There are two methods to produce edible vegetable oil: oil pressing method and solvent oil extracting method. Pressing is a mechanical method, which is originated from the traditional oil-making methods in workshops. Although today's oil pressing method is a large-scale and industrialized operation, its basic principle has not changed.
The solvent extracted oil is a method of extracting oil from oil material by crushing, flaking rolling and cooking,using edible grade solvent (n-hexane),which is a chemical extraction method. No matter pressing or solvent extraction method ,it just produce crude oil.
The difference between pressing method and solvent
No matter using pressing method or solvent extraction method, the final oil you get is crude oil, which need to be refined into edible oil. 2. Different oil residue rate: After pressing, usually the oil residue in the cake is around 6-7%. By using the solvent extraction method, the oil residue rate can be lower than 1%. 3. Different application
Solvent extraction is a chemical oil extraction method to process oil out from vegetables, oilseeds and nuts by solvent, and Hexane is the preferred choice. Industrial oil processing for the edible oil generally involves the solvent extraction step which may or may not be preceded by pressing.
rapeseed oil solvent extraction plant/edible oil refining
After oil pressing process or oil solvent extraction process, we get crude oil. But the crude oil can’t flow to supermarket. The crude oil must need processing with edible oil refining plant, especially soybean, cottonseed, rapeseed, palm kernel . Get Inquiry
Solvent extraction is the preferred method for the final separation of oil from oleaginous materials containing less than 30% oil by weight. For oleaginous materials with less than 30% oil by weight, such as soybeans, cottonseed, dry process corn germ and rice bran, the material is mechanically and thermally prepared and then sent to the solvent extraction process for oil separation.
Solvent Oil Extraction Plant for Edible Oil
Solvent oil extraction is a method of making edible oil by using the principle of extraction and selecting a kind of organic solvent which can dissolve oil and grease, through contacting with the oil (soaking or spraying), so that the oil and grease in the oil can be extracted.. Applicable Raw Materials. At present, the international common practice is: vegetable oils with high oil content
The solvent extracted oil is a method of extracting oil from oil material by crushing, flaking rolling and cooking,using edible grade solvent (n-hexane),which is a chemical extraction method. No matter pressing or solvent extraction method ,it just produce crude oil.
The difference between pressing method and solvent
No matter using pressing method or solvent extraction method, the final oil you get is crude oil, which need to be refined into edible oil. 2. Different oil residue rate: After pressing, usually the oil residue in the cake is around 6-7%. By using the solvent extraction method, the oil residue rate can be lower than 1%. 3. Different application
Solvent extraction is a chemical oil extraction method to process oil out from vegetables, oilseeds and nuts by solvent, and Hexane is the preferred choice. Industrial oil processing for the edible oil generally involves the solvent extraction step which may or may not be preceded by pressing.