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TitleFractionation of the major whey proteins and isolation of β-Lactoglobulin variants by anion exchange chromatography
Author(s)Santos, Maria João
Teixeira, J. A.
Rodrigues, L. R.
KeywordsWhey proteins
Anion-exchange chromatography
Issue date2012
JournalSeparation and Purification Technology
Abstract(s)A method for the separation and fractionation of the major whey proteins from a whey protein concentrate (WPC80) by anion-exchange chromatography coupled to a Fast Protein Liquid Chromatography (FPLC) system is proposed. The method is based on the use of an ionic column (Mono Q) and a salt gradient elution by increasing the ionic strength of the elution buffer (Tris–HCl 20 mM plus 0 to 1 M NaCl). The proposed method was found to be suitable to fractionate the major whey proteins from the WPC80 in different fractions, namely one fraction containing all the a-Lactalbumin and immunoglobulins; another fraction containing all the bovine serum albumin; and two distinct fractions each containing a different variant of b-Lactoglobulin. A 60.5% (w/w) recovery of the two main b-Lactoglobulin variants was obtained.
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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