A seabuckthorn peel residue-based degradable bioplastic film, method and application thereof

High-performance biodegradable bioplastic film was prepared from sea buckthorn residue through a multi-process purification and gelation reinforcement method, which solved the problems of pollution and resource waste of petroleum-based plastics, and achieved efficient resource utilization and performance improvement. It is suitable for a variety of packaging materials.

CN122404809APending Publication Date: 2026-07-17SHAANXI UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHAANXI UNIV OF SCI & TECH
Filing Date
2026-06-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing biodegradable packaging materials suffer from pollution problems caused by petroleum-based plastics, high costs, and insufficient performance. Furthermore, the utilization rate of sea buckthorn peel residue is low, leading to environmental pollution and low industrial added value.

Method used

A multi-stage synergistic purification process was used to extract high-purity cellulose from sea buckthorn residue. Combined with a natural gelling agent, a biodegradable bioplastic film based on sea buckthorn residue was prepared. The purity and dispersibility of cellulose were improved through steps such as ultrasonic extraction with ethanol, enzymatic hydrolysis of hemicellulose, and purification with alkaline solution, resulting in a bioplastic film with excellent mechanical properties and good dimensional stability.

Benefits of technology

It realizes the resource-based and high-value utilization of sea buckthorn peel residue, reduces costs, improves the mechanical properties and stability of the film, is suitable for various packaging scenarios, and is completely biodegradable and pollution-free, meeting food contact safety standards.

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Abstract

The application discloses a seabuckthorn peel residue-based degradable biological plastic film and a method and application thereof, and belongs to the technical field of biodegradable polymer materials. The seabuckthorn peel residue is used as raw material, the seabuckthorn powder is obtained through sugar removal and drying, crushing and screening, high-purity seabuckthorn cellulose is obtained through multistage synergistic purification processes of ethanol ultrasonic extraction, enzymatic hydrolysis, alkali refining and neutralization and water washing, the cellulose is prepared into an aqueous solution, glycerol and a natural gelling enhancer are compounded, uniform film forming slurry is obtained through stirring and ultrasonic homogenization, and finally, the biological plastic film is prepared through casting and drying molding. The cellulose concentration and the type of gelling agent are regulated to adjust the mechanical properties, light transmission and water resistance of the film. The obtained film has good formability, is safe and non-toxic, can be completely biodegraded in soil, is green and environment-friendly, is suitable for various green degradable packaging material fields, and realizes high-value utilization of seabuckthorn peel residue resources.
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