A method for preparing gamma-cyclodextrin
By decomposing the γ-cyclodextrin-organic solvent complex in alkaline aqueous solution and combining it with membrane separation technology, the problem of high cost in the separation and purification of γ-cyclodextrin was solved, and efficient and low-cost preparation of γ-cyclodextrin was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI YUSONG BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-06-02
AI Technical Summary
The high cost of separating and purifying existing γ-cyclodextrin complexes leads to excessively high industrial production costs, making large-scale production difficult.
A method for decomplexing γ-cyclodextrin-organic solvent complexes in alkaline aqueous solution is adopted, combined with membrane separation technology to avoid the energy-intensive steam extraction method. Decomplexing is carried out by adjusting the pH and temperature of the alkaline aqueous solution, followed by solid-liquid separation and membrane filtration, thereby improving the separation and purification efficiency.
The separation and purification steps of γ-cyclodextrin were simplified, production costs were reduced, production efficiency was improved, and complexing agents were effectively recovered, thus achieving efficient preparation of γ-cyclodextrin.
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