Process for producing a high-purity isomaltose

摘要

The present invention relates to a process for producing a high-purity isomaltose by applying an aqueous solution, containing isomaltose, to a column packed with a strongly-acidic cation exchange resin of alkali metal- or alkaline earth metal-form; and fractionating by charging water to obtain a high-isomaltose fraction with an isomaltose content of at least 40%, thereby enabling industrial-scale production of a high-purity isomaltose much easier at lower cost.