Hydrophobically modified coix seed starch-quercetin composite emulsifier, and preparation method and application thereof
By combining coix seed starch with quercetin, an emulsifier with a dual physical-chemical barrier mechanism was constructed, which solved the problems of insufficient density of the modified starch interfacial film and easy precipitation of quercetin, and achieved long-term antioxidant and stability of highly unsaturated oils such as walnut oil.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- KUNMING UNIV OF SCI & TECH
- Filing Date
- 2026-05-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing modified starch interfacial films have insufficient density, making it difficult to effectively inhibit the oxidation of oils rich in polyunsaturated fatty acids. Quercetin has poor water solubility and is prone to precipitation, resulting in a high risk of lipid oxidation in emulsions during long-term storage.
A composite emulsifier combining coix seed starch and quercetin is used to form a physical-chemical dual barrier mechanism through interfacial molecular self-assembly. By utilizing the microscopic geometric structure and chemical binding advantages of coix seed starch, quercetin is precisely anchored to build a highly dense defense system.
It achieves excellent physical stability and long-lasting antioxidant capacity of the emulsion, significantly extends the shelf life of the oil, and the stabilization and encapsulation of quercetin improves its bioavailability.
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