Formation of Artificial Casein Micelles

Abstract

The reformation of casein micelles was investigated by dialysis of simulated milk ultrafiltrate or skimmilk at a fixed temperature or by increasing the temperature from 5°C to 37°C. When submicelles were dialyzed at a fixed temperature the micelles were not reformed, but were when the submicelles were dialyzed as the temperature was increased from 5°C to 37°C. The salt content, casein composition and size distribution of the reformed micelles were approximately 70% of original micelles when the submicelles were dialyzed against skimmilk. The submicelles obtained from large micelles reformed into large micelles while submicelles from small micelles reformed into small micelles.