METHOD FOR EXTRACTING A PROTEIN FROM MILK

摘要

The invention relates to a method for extracting a protein from milk, hav ing at least one hydrophobic pocket and a negative charge to the natural pH of milk, that comprises the following steps: a) skimming and delipidation of the milk; b) passing the delipidated and skimmed fraction containing said p rotein on a chromatographic substrate on which is grafted a ligand having bo th a hydrophobic characteristic and a ionic characteristic in pH conditions enabling the protein to be retained on said substrate, the pH being higher t han 4.6; c) elution of the protein; d) purification of the eluded fraction b y removing the milk proteins from said eluded fraction; and e) recovering sa id protein.