초록

A process for the preparation of chitosan-glucan complexes from biological sources by treating said biological sources with solutions, characterized in that

대표청구항 ▼

[ What is claimed is:] [1.]1. A process for preparing chitosan-glucan complexes from biological sources comprising:a) reacting chitin-containing microorganisms having a cell structure, as said biological sources, at least once in the presence of a first alkaline solution, thereby, separating chitosa

[ What is claimed is:] [1.]1. A process for preparing chitosan-glucan complexes from biological sources comprising:a) reacting chitin-containing microorganisms having a cell structure, as said biological sources, at least once in the presence of a first alkaline solution, thereby, separating chitosan glucan complexes from the microorganisms; followed byb) reacting the chitosan-glucan complexes in the presence of diluted mineral acid, thereby, demineralizing the chitosan-glucan complexes; followed byc) reacting the chitosan-glucan complexes in the presence of a second alkaline solution, the second alkaline solution having a higher alkalinity than the first alkaline solution, thereby, effecting incomplete deacetylation of said chitosan-glucan complexes; followed byd) neutralizing the chitosan-glucan complexes, followed by washing with water, thereby, effecting incompletely deacetylized, demineralized chitosan-glucan complexes, while retaining the cell structure of the chitin-containing microorganisms.