Green method to prepare plain water-based polysaccharide chitosan solutions
AssigneeVirginia Commonwealth University
InventorsBoxuan LI, Juan WANG, Hu YANG
Life of this patent
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Abstract
A method is provided for producing a composition comprising chitosan and water, comprising dissolving chitosan powder in an ionic liquid, to prepare a first composition comprising chitosan and ionic liquid; and contacting the first composition with water under conditions sufficient to solvent-exchange all or substantially all of the ionic liquid with water; to form a composition comprising chitosan and water. Compositions produced thereby and methods of using the compositions are provided.
Claims20
A method for producing a composition comprising chitosan and water, comprising:
- dissolving chitosan powder in an ionic liquid, to prepare a first composition comprising chitosan and ionic liquid;
- and
- contacting the first composition with water under conditions sufficient to solvent-exchange all or substantially all of the ionic liquid with water;
- to form a composition comprising chitosan and water.
A composition, comprising nano-sized chitosan solutes and water.
Dependencies are inferred from the claim text.