Edible mushroom fresh-keeping film, fresh-keeping device and fresh-keeping method

By using a dual-effect UV and phosphorescent film in food packaging, and constructing a composite film using room-temperature phosphorescent carbon dot materials and sodium alginate matrix, the problems of high energy consumption and single function of light preservation technology are solved, achieving low-energy consumption and long-lasting food preservation effect, and enhancing the commercial value of food.

CN122302385APending Publication Date: 2026-06-30ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
Filing Date
2026-03-04
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing light-based preservation technologies in the food preservation field suffer from problems such as high energy consumption, high investment, short lifespan, and limited functionality. Furthermore, ultraviolet-excited phosphorescent materials exhibit insufficient uniformity and stability in food packaging, which affects their application in food preservation.

Method used

A dual-effect film combining ultraviolet and phosphorescence is used. The room-temperature phosphorescent carbon dot material emits long-life phosphorescence under ultraviolet light excitation. Combined with a sodium alginate matrix, a composite film is constructed to achieve uniform dispersion and stability of the phosphorescent material. Freshness is preserved through the dual light effects of ultraviolet light excitation and phosphorescence release.

Benefits of technology

It achieves low-energy consumption and long-lasting food preservation, avoiding the tissue damage and water loss problems of traditional UV light treatment, while providing biodegradability and higher preservation effect, thus enhancing the commercial value of food.

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Abstract

This invention discloses a preservation film, preservation device, and preservation method for edible fungi. The film includes a preservation film substrate in which phosphorescent materials are dispersed. The phosphorescent materials emit light with wavelengths of 470-580 nm under ultraviolet light excitation. The ultraviolet-phosphorescent dual-effect preservation film constructed by this invention can continuously release room-temperature phosphorescence after short-term ultraviolet excitation, achieving a low-energy, intermittent, and long-lasting dual-preservation light response, avoiding tissue damage and accelerated water loss caused by prolonged direct UV irradiation. Furthermore, the composite material used is biodegradable, low-cost, and environmentally friendly.
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