Activated carbon used for sugar decolorization is a decolorizing material made of high-quality sawdust, coconut shells, etc., through crushing, mixing, extrusion, molding, drying, carbonization, activation and other processes. Its main function is to adsorb pigments and impurities in syrup through its developed pore structure and large specific surface area, thereby improving the transparency and purity of syrup.

Mechanism of action of activated carbon in sugar decolorization:

Activated carbon relies on its developed pore structure and large specific surface area to adsorb pigments and impurities in syrup. Its micro-porous structure can effectively capture small molecular impurities, while medium and large pores can adsorb larger molecular pigments, significantly improving the transparency of syrup. In addition, the chemical properties of the surface of activated carbon can also react with certain colored impurity molecules to further enhance the decolorization effect.

Evaluation indicators of the effect of activated carbon in sugar decolorization:

The effect of activated carbon in sugar decolorization is usually evaluated by the following indicators:

Decolorization rate: reflects the efficiency of pigment removal in syrup. Activated carbon can achieve a decolorization rate of more than 80%, especially for syrups with high color values;

‌Adsorption rate‌: High adsorption rate means that it can complete the decolorization process in a shorter time, improving production efficiency‌;

‌Sugar loss rate‌: Activated carbon can effectively decolorize while keeping the sugar loss rate at a low level, which is crucial to ensure high yield.‌