| abstract |
The total precipitation or by fractionation of proteins from suspension mixtures or protein solutions containing a salt is induced or improved by subjecting the protein mixture to a desalination treatment, for example by electro-dialysis. In one aspect of the invention, the desalination treatment is used in conjunction with the addition of heavy metal ions to the protein mixture to obtain a synergistic effect on the precipitation of the protein fraction. In another aspect of the invention, the desalination treatment, with or without the addition of heavy metal ions, is used as an integral part of a selective plasmapheresis process to remove or recover one or more plasma proteins from blood plasma. |