Corn starch sugar is an important sugar product obtained by hydrolyzing corn starch with amylase. However, due to the influence of raw materials and processing technology, corn starch syrup often contains pigments, proteins, impurities and other substances that affect the purity of the final product. Therefore, decolorization treatment is required in the production process, and activated carbon has become the core material for decolorization of corn starch sugar due to its strong adsorption capacity.
How to get corn starch sugar?
The preparation process of corn starch sugar needs to go through multiple steps, and saccharification is one of the important processes. Saccharification is the process of converting starch into sugar. Its purpose is to break down starch macromolecules into simpler small-molecule sugar substances to facilitate subsequent process operations.
The commonly used saccharification process for corn starch is the liquefaction-saccharification method. Specifically, corn starch is hydrolyzed into smaller sugar chain molecules under high temperature and pressure through the action of liquefaction enzymes, while maintaining its sweetness and solubility. Then, through the catalytic action of saccharifying enzymes, these small molecule sugar chains are decomposed into sugar substances such as glucose, maltose and isomaltose. Finally, syrup is obtained, and with centrifugation, filtration and concentration, clear corn starch sugar will form.
Corn starch sugar refining
The quality of corn starch sugar is subject to the refinement of its preparation process. The refinement steps include decolorization, calcification, filtration and other procedures.
Decolorization is the process of removing color impurities from syrup. Corn starch sugar needs to use activated carbon and centrifugal filtration to remove its color.
Calcification is the main measure to improve the quality and safety of products. Calcification can effectively remove residual microorganisms and their products, and is considered to be one of the most important preservative factors of corn starch sugar.
Filtration is the process of removing suspended matter from syrup. A variety of different filter materials and filters are needed in the process to ensure clear corn starch sugar.
Activated carbon application for corn starch sugar
- Syrup pretreatment
Corn starch sugar is filtered to remove large impurities and suspended particles to provide conditions for subsequent decolorization. - Adding activated carbon
According to the specific properties of the syrup and the decolorization target, powdered activated carbon (PAC) is added to the syrup in a certain proportion. - Stirring and mixing
At a suitable temperature (such as 60℃~80℃), the activated carbon and syrup are fully mixed to achieve the best adsorption effect. - Filtration and separation
The syrup is separated from the used activated carbon through the filtration device to obtain a clear syrup after decolorization. - Post-treatment
The decolorized syrup is further refined, such as ion exchange or concentration, to meet industrial use standards.
For corn starch sugar filtration, we primarily provide powder activated carbon (PAC). With its rich microporous structure and strong adsorption capacity, it can effectively remove pigments, impurities and odors in the syrup.
Here are some product specifications. If you have specific needs, we can customize them based on iodine value and specifications.
| Item | ZL-100 | ZL-110 | ZL-120 |
| Caramel decolorization rate | 100% | 110% | 120% |
| Moisture | 10% | 10% | 10% |
| PH | 2.5-5 | 2.5-5 | 2.5-5 |
| Iron content | 0.1% | 0.05% | 0.05% |
| Ash content | 6% | 6% | 6% |
| Chloride content | 0.2% | 0.2% | 0.2% |
| Acid content | 2% | 2% | 2% |
| Size | 200mesh | 200mesh | 200mesh |
Corn starch sugar application
Corn starch sugar is widely used in various fields, such as food, beverages, medicine, cosmetics, etc., due to its excellent physical properties and sweet taste.
For food processing, corn starch sugar is often used in candies, sweet biscuits, bread and other products, which can provide excellent taste and flavor.
For beverages, corn starch sugar can be made into various beverage seasonings, and its solubility and absorption characteristics can quickly provide energy to the human body.
For medicine, corn starch sugar is used in oral tablets and capsules, which can play the role of auxiliary agent, instant dissolution, seasoning, etc. At the same time, corn starch sugar is also used in some drugs for treating diarrhea and other digestive system diseases.
Conclusion
Activated carbon plays an important role in removing pigments, improving product purity and enhancing quality in the decolorization process of corn starch sugar. By rationally selecting and using activated carbon, it can not only improve decolorization efficiency, but also reduce production costs. It is an indispensable part of modern syrup production. If you need high-quality decolorization activated carbon, please contact us for more technical support and activated carbon information!