Edible oil decolorization

- Sep 15, 2017 -

Used in the decolorization of edible oil, the traditional decolorizer, active clay, activated carbon. Here are two new ways:

Decontamination with synthetic silica gel The preparation of a water-soluble silicate by precise stringent conditions, also known as "hydrogels", which are used in conjunction with activated clay adsorbents, both of which have a complementary effect because This bleaching agent for phospholipids, trace metals, soap has a high adsorption activity. Experts recommend: first with this silica gel adsorbent removal of edible oil in the phospholipids, trace metals and soaps, and then through the clay filter layer to remove oil in the chlorophyll and other pigment, this method requires bleaching clay the most provincial Help to improve the yield and quality of oil.

Decontamination with solvent mixed oil In the study of the elimination of soybean oil in the oxidation of polyunsaturated fatty acids produced by the deterioration of odor and taste, slow down the rate of deterioration of soybean oil, access to an effective new method. First, a "soybean oil / non-polar solvent" mixed oil (for example, with an oil solvent) is used, and then the mixed oil is filled with silica gel adsorbent as a column, and in the mixed oil filtration process, Polar oxidation of the product, through the adsorption of mixed oil, remove the solvent, access to high-quality edible oil, not only has a good sensory stability, and extend the shelf life of edible oil.


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