(191b) Separation of Chitin from Shrimp Shells using Functional Ionic Liquids
Herein, we report a green and simple method to prepare chitin using choline-based ionic liquids (ILs) from shrimp shells in one step. The used IL could remove the protein and calcium carbonate, simultaneously. The type of the IL, experiment temperature and time played key roles in the process. Under optimal conditions, the chitin with 92 % purity was obtained, and the yield was up to 78 %. The reason for calcium carbonate and protein removal was the different roles of the cation and anion in the used IL. The proposed method provides a promising alternation of chitin preparation in the industry.
Key words: shrimp shells, chitin, ionic liquids
This work was supported financially by National Natural Scientific Fund of China (No.21476234, No.21506231).
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