METHOD FOR PRODUCING POROUS PARTICLES, POROUS PARTICLES, ADSORBENT BODY, AND METHOD FOR PURIFYING PROTEIN

摘要

The objective of the present invention is to provide a method for easily producing a porous cellulose particle which can be used as an adsorbent for various substances in a safe manner without using a highly toxic solvent such as a calcium thiocyanate solution. In addition, the objective of the present invention is to provide a porous particle produced by the production method, an adsorbent which contains the porous particle and by which a highly pure protein can be efficiently purified in a safe manner, and a method for purifying a protein by using the adsorbent. The method for producing a porous particle according to the present invention is characterized in comprising the steps of preparing a solution containing cellulose and an ionic liquid; preparing a dispersion by dispersing the obtained cellulose solution into a liquid, wherein the liquid is not compatible with the ionic liquid; and coagulating the dispersion by bringing into contact with an alcohol or an alcohol aqueous solution in order in order to obtain the porous particle.