| 摘要 |
The present invention provides an industrially useful chitosan-containing composition in the form of any of a transparent aqueous solution, gel or dry powder having a neutral to weakly alkaline pH when in the form of an aqueous solution that can be applied to pharmaceutical additives, foods, beverages and cosmetics. A production process of the chitosan-containing composition of the present invention has a step for preparing an acidic chitosan aqueous solution, a step for forming a solid by removing a water-soluble salt from a salt formed by mixing an acidic polymer component into the acidic chitosan aqueous solution, and a step for dissolving the solid in a weakly basic solution.
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