By submitting casein micelles to hydrostatic pressures up to 600 MPa, intermolecular interactions stabilizing their native structure became weakened. Tracking the pressure-driven dissociation and reassociation led to deeper insights into the interactions between the single casein monomers and their role in micellar stabilisation. For this, the casein monomers liberated by the application of pressure were in-situ separated from intact micelles by means of ceramic membranes as a diffusion barrier, making them accessible for ex-situ analytical techniques. Furthermore a chymosin-catalysed hydrolysis of the key-monomer κ-Casein was conducted under pressure in the dissociated state of the casein micelle, confirming its function as a terminator molecule during micelle reformation after high pressure treatment.
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By submitting casein micelles to hydrostatic pressures up to 600 MPa, intermolecular interactions stabilizing their native structure became weakened. Tracking the pressure-driven dissociation and reassociation led to deeper insights into the interactions between the single casein monomers and their role in micellar stabilisation. For this, the casein monomers liberated by the application of pressure were in-situ separated from intact micelles by means of ceramic membranes as a diffusion barrier,...
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