Decoloring process in soybean oil refining
Decoloring process, there are two categories of color in crude corn oil: one for natural pigments, such ascarotenoids, lutein, chlorophyll and other substances, easy to drift soil adsorption decoloring. Another type of organic matter decomposition products formed pigmentation, brown and tan, easy to drift soil adsorption decoloring. They often had positive colloidal dispersion in oil. Although some pigments are removed during processing, but the larger the magnitude of recovery.
Processed into corn oil generally require the use of a decoloring process; once floated cross Decoloring process decoloring earth secondary effects; embryos for material handling is not timely, the preparation of fuel oil hair darker, more difficult decoloring, you can use the pre-decoloring.
After decoloring of corn oil in addition to its existing corn flavor, there are brought in alkali refining the "soap" taste, decoloring brought in "soil fishy" taste, so the need to further deodorized corn oil in line with the flavor request.
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