SOLID CELLULOSIC CULTURE MEDIUM AND PROCESS FOR PRODUCING THE SAME

摘要

A solid culture medium containing as a medium-solidifying ingredient a cellulosic gel, in particular, a cellulosic gel which is a porous cellulosic gel structure containing cellulose as the skeletal part and having a cellulose concentration of 0.01% or higher and a porosity of 50% or higher. The solid culture medium can be obtained by dispersing cellulose in a solvent, especially an aqueous thiocyanate solution, stirring and/or heating the dispersion to dissolve the cellulose, subsequently cooling the solution and/or removing the solvent to cause the solution to gel, and infiltrating a nutrient into the resultant cellulosic gel. Unlike conventional solid culture media such as agar media, the solid culture medium can be used under a wider range of culture conditions.