Sunflower seed oil has a light color. The degumming, deacidification, decolorization and deodorization process of sunflower oil processing are basically similar to soybean oil refinery plant. But sunflower oil usually generally needs dewaxing process to reach the national standards for edible cooking oil.
Sunflower Oil Refining Machine not only can be used to refine crude sunflower oil, but also ideal for other crude edible oil refining, including soybean oil, palm oil, palm kernel oil, coconut oil, cottonseed oil, groundnut/peanut oil, mustard oil etc., (Related Article: Edible Oil Refinery Plant Setup Cost >>). Sunflower oil refining machine has standard refining process, high refining speed and can produce high quality refined cooking sunflower oil. Now, more and more sunflower oil manufacturer or producers have adopted it for sunflower oil production. However, how much do you know about sunflower oil? Here, we will offer a detailed introduction of sunflower oil refinery machine and its detailed process.
Degumming
It is also referred to as pretreatment. Here, the oils are subjected to acidic treatment. Gums are precipitated out and separated by the centrifugal separation process. When gum content is low, gum conditioning is applied instead.
Neutralizing
The degummed oil from process one is subjected to alkali refining. The free fatty acids present in the oils react with the caustic soda leading to the formation of a soap stock. Through the use of a centrifugal separator, the soap stock is removed by centrifugal separators which use water to wash off the soap.
Bleaching
This is where any coloring pigment present in the oils is removed. Here, the neutralized oil from process two is treated with activated carbonlearth. Vertical pressure leaf filters are then used for the removal of the bleaching agent when all the oil has been passed through.
Deodorizing
As suggested by the process name, this is where odor removal takes place. Every cooking oil has its unique natural smell. During the bleaching and the neutralization processes, unpleasant smells are imparted on the oil. It is therefore necessary to get rid of them. This is where any odiferous material present is removed. This operation is carried out at temperatures which are extremely high. By maintaining a high vacuum and injecting an open stream, the odiferous matter is removed. Through the use of a vacuum system, it is then carried off to the barometric condensers.
Dewaxing
Oils such as corn oil and sunflower oil have waxes in them. When oil with waxes is kept in relatively low temperatures, it gets a hazy appearances which is generally disliked by customers. The removal of waxes is the final step that a cooking oil refining plant takes before bottling and marketing its oil.
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