Process for producing chitosan-glucan complexes, compounds producible therefrom and their use
AssigneeAlexander Teslenko
InventorsAlexander Teslenko, Woewodina Irina Nikolaewna
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Abstract
A process for the preparation of chitosan-glucan complexes from biological sources by treating said biological sources with solutions, characterized in that a) chitin-containing microorganisms as said biological sources are treated at least once with a first alkaline solution; b) thereafter, the product obtained from step a) is treated with diluted mineral acid; c) followed by a further treatment with a second alkaline solution the alkalinity of which is higher than that of the alkaline solution of step a) to incomplete deacetylation of the fraction obtained step b); d) separating the solid components, discarding the supernatant, neutralizing and washing the residue with water.
Claims21
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 by
- b) reacting the chitosan-glucan complexes in the presence of diluted mineral acid, thereby, demineralizing the chitosan-glucan complexes;
- followed by
- c) 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 by
- d) 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.
Dependencies are inferred from the claim text.