Degradable film material with high water vapor permeability for slowly releasing fruit ripening agent as well as preparation method and application of degradable film material

By mixing chitosan and soy protein isolate with ethylene lipo, a degradable membrane material with high water vapor transmission is prepared, which solves the problem of ethylene lipo residue and achieves its safe and efficient use in agriculture.

CN119823419APending Publication Date: 2025-04-15INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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Patent Information

Application Number
CN202411802367.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-04-15

AI Technical Summary

Technical Problem

The prior art is difficult to effectively solve the problem of residual ethylene after use in agriculture, affecting the environment and human health.

Method used

A high water vapor transmittance degradable membrane material was developed, and a membrane material with good biodegradability and sustained release effect was prepared by mixing chitosan and soy protein isolate with ethylene.

Benefits of technology

The sustained release and biodegradation of ethylene diazepam are achieved, reducing its residual risk in the environment, and improving the safety and efficiency of ethylene diazepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamepamep

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Abstract

The invention provides a degradable film material with high water vapor permeability for slowly releasing a fruit ripening agent as well as a preparation method and application of the degradable film material. The preparation method comprises the following steps: dissolving chitosan in an organic acid aqueous solution, and adjusting the pH value to 1.0-5.0; the preparation method comprises the following steps: dissolving soybean protein isolate in water, treating at 80-95 DEG C for 25-30 minutes, and adjusting the pH value to 1.0-5.0; and mixing the two solutions in proportion, adding glycerol and a plant growth regulator to prepare a degradable film material solution, carrying out ultrasonic defoaming, pouring the degradable film material solution into a mold, and drying to obtain the degradable film. The controllable and slow-release soybean protein isolate-chitosan-based degradable film material is developed by using ethephon, has good biodegradability, fracture tensile property, water vapor permeation property and ultraviolet barrier property, can conveniently, efficiently and controllably release the ripening agent, avoids the residue of ethephon in fruits, and has a good application prospect in the field of fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation and fruit maturation. The production place loss rate of the fruits is reduced, and the method has a good industrialization prospect in agricultural product storage and transportation.
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