Method for preparing astaxanthin-loaded ovomucin-pectin-epsilon-polylysine hydrochloride complex nanogel
By employing the self-assembly technology of ovomucoid-pectin-ε-polylysine hydrochloride composite nanogels, the stability and bioavailability issues of astaxanthin in food have been resolved, achieving efficient encapsulation and improved stability, making it suitable for functional foods and beverages.
CN122139942APending Publication Date: 2026-06-05SHANDONG UNIV OF TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANDONG UNIV OF TECH
- Filing Date
- 2026-05-07
- Publication Date
- 2026-06-05
AI Technical Summary
Technical Problem
Astaxanthin is easily degraded during processing and storage, has poor water solubility, and low oral bioavailability, which limits its application in functional foods and beverages.
Method used
An ovomucoid-pectin-ε-polylysine hydrochloride composite nanogel system was adopted. The nanogel was formed by electrostatic interaction to encapsulate astaxanthin and form a stable core-shell structure to improve its water solubility and stability.
Benefits of technology
It significantly improves the water solubility and dispersion stability of astaxanthin, enhances its antioxidant activity, enables controlled release, maintains stability under extreme environments, reduces the risk of organic residues, and facilitates large-scale production.
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Smart Images
Figure CN122139942A_ABST
Abstract
The application belongs to the technical field of high polymer substances, and particularly relates to a preparation method of astaxanthin-loaded ovomucin-pectin-epsilon-polylysine hydrochloride composite nanogel. Under stirring conditions, a pectin solution is added into an ovomucin solution; then an astaxanthin solution is added, and ultrasonic treatment is performed to obtain a mixed solution; an epsilon-polylysine hydrochloride solution is added into the mixed solution, and stirring reaction is performed to obtain a mixture; the mixture is centrifuged to obtain a dispersion liquid and a precipitate, and the dispersion liquid is dialyzed after separation to obtain the astaxanthin-loaded ovomucin-pectin-epsilon-polylysine hydrochloride composite nanogel. The application uses naturally-sourced ovomucin, pectin and epsilon-polylysine hydrochloride as raw materials, effectively avoids the use of organic solvents, and reduces the risk of organic residue; the preparation method has mild conditions and simple operation, the raw materials are widely sourced and low in price, and the application does not need complex equipment and organic solvents, and has good prospects for large-scale production and application.
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