| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive method for producing chitosan fine particles without requiring a surfactant or a complicated process for producing chitosan fine particles of micron-submicron size and highly usable for multiple purposes such as cosmetic application and medical application. SOLUTION: The method for producing chitosan fine particles comprises a process (dissolution process) for dissolving chitosan with an aqueous solution of one kind of acid selected from a group consisting of citric acid, tartaric acid, and malic acid, and a process (deacidification process) for removing an acid solvent from the chitosan solution obtained in the dissolution process. COPYRIGHT: (C)2009,JPO&INPIT |
