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Purification of the two major proteins from whey concentrate using a cation‐exchange selective adsorption process
Author(s) -
ElSayed Mayyada M. H.,
Chase Howard A.
Publication year - 2009
Publication title -
biotechnology progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.572
H-Index - 129
eISSN - 1520-6033
pISSN - 8756-7938
DOI - 10.1002/btpr.316
Subject(s) - elution , adsorption , chromatography , lactalbumin , chemistry , aqueous solution , whey protein , ion exchange , sepharose , beta lactoglobulin , organic chemistry , ion , enzyme
The packed‐bed adsorption and elution of aqueous solutions of whey concentrate powders were investigated at pH 3.7 using a 5‐mL SP Sepharose FF column to separate and isolate two major proteins namely, α‐lactalbumin (ALA) and β‐lactoglobulin (BLG) from these solutions. ALA displaced and eluted BLG from the column in a pure form. Pure ALA could then be eluted with good recovery. A novel consecutive two‐stage separation process was developed to separate ALA and BLG from whey concentrate mixtures. Almost all of the BLG in the feed was recovered, with 78% being recovered at 95% purity and a further 20% at 86% purity. In addition, 67% of ALA was recovered, 48% at 54% purity and 19% at 60% purity. © 2009 American Institute of Chemical Engineers Biotechnol. Prog., 2010