METHOD OF TREATING TOBACCO EXTRACT SOLUTION TO ELIMINATE MAGNESIUM IONS, METHOD OF MANUFACTURING REGENERATED TOBACCO MATERIAL, AND REGENERATED TOBACCO MATERIAL

摘要

A method for treating a tobacco extract, which comprises contacting an extract obtained by extracting a natural tobacco material with an aqueous extraction solvent, with a polymer having a functional group capable of capturing metals including at least magnesium in the side chain thereof, to thereby prepare an extract being reduced at least in a magnesium content.