Method of isolating biomacromolecules using low pH and divalent cations

摘要

The present invention is related to a method of isolating a biological macromolecule in a composition. Specifically, the present invention is directed to a method of isolating a biomacromolecule in a composition containing an impurity, the method comprising (a) lowering the pH of the composition, (b) adding a divalent cation to the composition, and (c) separating the biomacromolecule from the impurity.