| abstract |
This invention concerns a method for extracting at least one protein present in milk, the said protein showing an affinity for calcium ions in complexes or free, in the said milk. It comprises the following steps: a) freeing the protein by precipitating the calcium compounds obtained by contact of the milk with a soluble salt, whose anion is chosen for its capacity to form the said insoluble calcium compounds in such a medium, in order to thus obtain a liquid phases that is enriched with the protein, b) separation of the enriched liquid phase into the protein precipitate with the calcium compound, the said liquid phase being moreover separated into a lipid phase and a non-lipid aqueous phase comprising the protein and c) collection of the aqueous non-lipid phase comprising the protein. |