Decolorization of sucrose thermal polymerization products by activated carbon

Use activated carbon to decolorize the sucrose thermal polymerization product. By comparing the adsorption isotherm curve, it is determined that the decolorization effect of granular activated carbon on the thermal polymerization product of sucrose is better than that of powdered activated carbon.

The analysis results of single factor experiment and orthogonal experiment show that when the concentration of the sucrose thermal polymerization product solution is 400g/L, the optimal conditions for decolorization are: the mass fraction of activated carbon is 2%, the temperature is 80℃, and the decolorization time is 40min. Under these conditions, the decolorization rate was 97.2%.

In recent years, fructooligosaccharides have attracted people's attention because of their unique physiological functions. activated carbon bulk canada The production of fructooligosaccharides in my country is mainly produced by microbial fermentation, after a series of separation and purification. This experiment explored the synthesis of oligofructose by sucrose thermochemical method.

In order to separate and purify the oligofructose in the sucrose thermal polymerization product, the mixture should be decolorized first.

Bone charcoal and activated carbon are generally used for the decolorization of sugar liquid. The equipment required for decolorization of bone charcoal is more complicated, and it hardly absorbs 5-hydroxymethyl furfural, which is currently being replaced by activated carbon.

Activated carbon can be divided into granular activated carbon and powdered activated carbon. yongruida activated charcoal Powdered activated carbon contains (85~90)% carbon, and the adsorption area per gram of carbon is more than 500m2; granular activated carbon contains about 90% carbon, and the adsorption area per gram of carbon reaches 1000m2 Above, both types of activated carbon can decolorize sugar liquid.