公开(公告)号：US20230082473A1

公开(公告)日：2023-03-16

申请号：US17801715

申请日：2021-02-19

Applicant: KANEKA CORPORATION

Inventor： Fuminori KONOIKE ,  Kazunobu MINAKUCHI ,  Dai MURATA ,  Kenta KISHI ,  Masakatsu NISHIHACHIJO

IPC: B01J20/04 ,  C12N1/08 ,  C12N7/00 ,  C07K1/22 ,  B01D39/16 ,  B01D39/20

Abstract: The objective of the present invention is to provide a method for effectively and easily reducing an amount of a specific impurity in a liquid. The method for reducing an amount of a nucleic acid in a liquid according to the present invention is characterized in comprising the steps of contacting the liquid with a water-insoluble magnesium compound to adsorb at least a part of the nucleic acid on the water-insoluble magnesium compound. Also, the objective of the present invention is to provide an adsorbing filter useful for purifying a useful substance, such as an antibody and an antibody-like molecule, used as a purification material for effectively removing an impurity with easily maintaining the yield of the target substance due to excellent adsorption ability to a nucleic acid and low adsorption ability to an antibody, an antibody-like molecule or the like. The adsorbing filter is characterized in comprising the layer comprising a water-insoluble magnesium compound.