Process for the preparation of two polysaccharide-stabilized high internal phase emulsions

By leveraging the synergistic effect of chitosan and tamarind polysaccharide, a high internal phase emulsion was prepared without the need for the addition of other components. This solved the problem of insufficient stability of polysaccharide materials in high internal phase emulsions, achieving safe, green, and stable emulsion preparation and expanding the application range.

CN122145834APending Publication Date: 2026-06-05NORTHEAST AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHEAST AGRICULTURAL UNIVERSITY
Filing Date
2026-04-17
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the current technology, there is insufficient research on the stabilization of high internal phase emulsions by polysaccharide materials, especially the stability challenges of chitosan and tamarind polysaccharide in Pickering emulsion systems, and there is a lack of research and mechanisms on the synergistic stabilization of high internal phase emulsions by the two polysaccharides.

Method used

Using chitosan and tamarind polysaccharide as stabilizers, and by adjusting the pH and mixing under acidic conditions, combined with ultrasonic treatment and centrifugation, a high internal phase emulsion was prepared without the addition of other surfactants or inorganic particles.

Benefits of technology

A safe, green, and stable high internal phase emulsion was successfully prepared, exhibiting excellent gel strength and plasticity, expanding its application areas to include oleogels, 3D/4D printed food and drug loading, and possessing good thermal and pH stability.

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Abstract

The present application relates to two polysaccharide stable high internal phase emulsion and its preparation method and application. The preparation method comprises: dispersing tamarind polysaccharide and chitosan in water and 0.1 wt% acetic acid solution respectively, mixing different proportions to obtain the water phase; the obtained water phase is ultrasonically treated with oil phase, and assisted by centrifugation, a high internal phase emulsion with oil phase volume fraction not less than 74% is prepared. The present application only needs to use polysaccharide (or polysaccharide derivative), without additional addition of surfactant or coagulant, and can prepare high internal phase emulsion through ultrasonic combined with centrifugal process, which provides a new idea for the development of new high internal phase emulsion emulsion stabilizer. The obtained oil-in-water high internal phase emulsion is green and safe, has excellent stability, good gel performance and strong plasticity, and has wide application prospect in food, medicine, chemical industry and biological engineering materials and other fields.
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