Food grade calcium oxide for sugar refining is a high-purity alkaline compound used to raise the pH of raw cane or beet juice, precipitating impurities so they can be filtered out before crystallization. It helps produce clear, white sugar with minimal color and ash.
How does food grade calcium oxide purify sugar juice?
When added to acidic juice, calcium oxide forms calcium hydroxide, which neutralizes acids and precipitates impurities like proteins, pectins, and organic acids. The resulting floc is separated, leaving a clearer juice that yields higher-quality sugar.
What specifications should you look for?
Choose a product with high calcium oxide content (typically 95% or higher) and low heavy metals to meet food safety standards. Verify the supplier provides a certificate of analysis and complies with FCC or E number regulations.
Why source from a reliable calcium manufacturer or supplier?
A reputable calcium manufacturer ensures consistent purity and particle size, which affects reaction efficiency. Working with a trusted calcium supplier also guarantees timely delivery and technical support. Many buyers turn to established producers in regions like China, where china calcium salts are widely exported for food applications.
How is it used safely in sugar production?
Dosage depends on juice acidity, typically ranging from 0.5 to 2 kg per ton of cane. Proper handling includes dust control and protective equipment, as calcium oxide is caustic. After reaction, excess lime is removed during carbonation or filtration.
Is food grade calcium oxide the same as agricultural lime?
No. Food grade calcium oxide is refined to meet strict purity and safety standards for human consumption, while agricultural lime may contain impurities unsuitable for food processing. Always specify food grade for sugar refining.
常见问题
What is food grade calcium oxide used for in sugar refining?
It raises the pH of raw juice to precipitate impurities like proteins and organic acids, which are then filtered out. This process improves sugar color, purity, and yield.
How do I choose a reliable calcium oxide supplier for sugar refining?
Look for suppliers who provide a certificate of analysis, meet food safety standards like FCC, and have experience in the sugar industry. A reputable calcium manufacturer will also offer consistent quality and technical support.
Is food grade calcium oxide safe to handle?
It is safe when used correctly but is caustic and can irritate skin and eyes. Use protective equipment and follow safety guidelines during handling and storage.
