COMPARISON OF SERUM ALBUMIN SEPARATION BY AMMONIUM SULFATE PRECIPITATION AND CIBACRON BLUE AFFINITY CHROMATOGRAPHY

ESMANUR ÇİĞ, TAYFUN GÜLDÜR

Anatolian Journal of Pharmaceutical Sciences - 2025;4(2):63-75

 

Serum albumin, which is synthesized in the liver and has many physiological functions, is one of the most abundant proteins in plasma. Albumin is a valuable biomarker of many diseases and has indications in many diseases. The increasing use of albumin in biotechnological applications, its important ligand-carrying properties and its wide range of applications in clinical and basic scientific studies require high purity serum albumin separation. Many methods such as ammonium sulfate precipitation, heat shock method, plasma fractionation with ethanol, chromatographic methods (column, affinity), acetone/trichloroacetic acid precipitation are used for albumin separation from serum. In this study, 2 methods based on ammonium sulfate precipitation and Cibacron Blue affinity chromatography were compared. The purity of the isolated proteins was monitored by SDS-PAGE and densitometrically analyzed. The selected methods were evaluated in terms of time, applicability, purity and cost. İt was concluded that ammonium sulfate precipitation provided a more successful separation in terms of albumin yield and purity compared to Cibacron Blue affinity chromatography.