Crystallization and matrix formation - Freezing and thatwing - Cryoprotection
3 important questions on Crystallization and matrix formation - Freezing and thatwing - Cryoprotection
How can you prevent ice from crystallising and instead going into the glassy state?
If you make sure that the total concentration of non-water components ('solid' concentration) is higher than Cg', then ice will never form. This is called cryoprotection.
What kind of molecules can be cryoprotectant?
Low-molecular weight molecules. Large molecules will not be able to penetrate the matrix and hence will not replace the water.
The cryoprotectant molecule should also not crystallize itself.
The cryoprotectant molecule should also not crystallize itself.
What kind of cryoprotectants are often used in food applications?
Sugars, such as glucose and fructose. They can however still crystallize and are unhealthy.
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