Preparation method and application of gelatin-ZnO / chitosan-high internal phase emulsion double-layer membrane

By using the preparation method of gelatin-ZnO/chitosan-high internal phase emulsion double-layer film, the existing packaging film has been solved, and the effective preservation and storage period of food has been achieved.

CN119840243AActive Publication Date: 2025-04-18HARBIN UNIV OF COMMERCE
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Patent Information

Application Number
CN202510136420.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2025-04-18
Estimated Expiration
2045-02-07

AI Technical Summary

Technical Problem

The existing polymer-based packaging film has poor mechanical properties, poor antibacterial and barrier properties, and cannot effectively extend the shelf life of food.

Method used

The preparation method of gelatin-ZnO/chitosan-high internal phase emulsion double-layer film is adopted. Tea tree essential oil is encapsulated by high internal phase emulsion, and gelatin and nano ZnO are combined to form a double-layer film with antioxidant and antibacterial effects.

Benefits of technology

It realizes effective preservation of food, extends the storage period of food, and improves the light-blocking performance and antibacterial ability of the film.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a preparation method and application of a gelatin-ZnO / chitosan-high internal phase emulsion double-layer film, and relates to a preparation method and application of a packaging film. The invention aims to solve the problems that the existing polymer-based packaging film is poor in mechanical property, low in antibacterial activity and barrier property and incapable of effectively prolonging the storage life of food. The method comprises the following steps: 1, preparing a tea tree essential oil high internal phase emulsion; 2, preparing a gelatin-ZnO / chitosan-high internal phase emulsion double-layer film; and 3, pouring the film-forming liquid A on a clean flat plate, putting the flat plate into a biochemical incubator for drying, pouring the film-forming liquid B on the film A, and putting the flat plate into the biochemical incubator for continuous drying to obtain the gelatin-ZnO / chitosan-high internal phase emulsion double-layer film. The gelatin-ZnO / chitosan-high internal phase emulsion double-layer film is used as a preservative film. The gelatin-ZnO / chitosan-high internal phase emulsion double-layer film prepared by the preparation method disclosed by the invention has excellent antioxidant capacity and antibacterial capacity, and the storage life of food can be effectively prolonged.
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Citation Information

Patent Citations

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  • Chitosan / zein slow-release antibacterial film with Janus structure as well as preparation method and application of chitosan / zein slow-release antibacterial film

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