Oil refining-Dewaxing
Compared with common vegetable oils, such as rapeseed oil, soybean oil, peanut oil, etc., crude bran oil not only has high acid value and dark color, but also contains 2% to 7% of wax. The wax in rice bran oil is called "bran wax". It is different from mineral wax (paraffin wax) in composition. The latter is a long-carbon chain n-alkane. The main component of furfur wax is the ester formed by higher fatty acid and higher fatty acid enzyme.
When the temperature is higher, the bran wax is dissolved in the oil in a molecularly dispersed state. Because of its higher melting point, when the temperature gradually decreases, it will crystallize out of the oil phase, making the oil opaque and affecting the appearance of the oil. At the same time, rice bran oil with a high wax content can confuse the mouth and affect appetite. After entering the human body, it cannot be digested and absorbed by the human body, so it is necessary to remove it. Corn oil also needs to be "dewaxed" when producing salad oil. The process of removing wax in oil is called "dewaxing".
There are currently three methods for dewaxing rice bran oil in my country: filter press filteration, bag hanging filteration and centrifugal separation.
Hot tags:Oil refining,dewaxing,rice bran oil,centrifugal separation
When the temperature is higher, the bran wax is dissolved in the oil in a molecularly dispersed state. Because of its higher melting point, when the temperature gradually decreases, it will crystallize out of the oil phase, making the oil opaque and affecting the appearance of the oil. At the same time, rice bran oil with a high wax content can confuse the mouth and affect appetite. After entering the human body, it cannot be digested and absorbed by the human body, so it is necessary to remove it. Corn oil also needs to be "dewaxed" when producing salad oil. The process of removing wax in oil is called "dewaxing".
There are currently three methods for dewaxing rice bran oil in my country: filter press filteration, bag hanging filteration and centrifugal separation.
Hot tags:Oil refining,dewaxing,rice bran oil,centrifugal separation
