abstract |
(57) Abstract: A method for purifying serum IgA, which comprises a step of subjecting a solution containing serum immunoglobulin A (IgA) to metal chelate chromatography, a water extraction treatment, polyethylene glycol fractionation, an anion exchanger A method for purifying serum IgA, which comprises a combination of a treatment and a hydrophobic chromatography treatment. [Effect] According to the metal chelate chromatography treatment, IgA and other plasma proteins can be efficiently separated. Therefore, according to the method of the present invention, serum IgA can be economically obtained on an industrial scale with high yield. Can be obtained. |