Full-biomass porous material slow-release antibacterial active preservative film and preparation method thereof

Abstract

The invention provides a full-biomass porous material slow-release antibacterial active preservative film and a preparation method thereof. The full-biomass porous material slow-release antibacterialactive preservative film comprises 35-45 wt% of a matrix resin, 30-40 wt% of a biological porous substance, 20-25 wt% of an antibacterial agent and 0.9-1.3 wt% of a processing aid. The preparation method comprises the following steps: mixing the biological porous substance with the antibacterial agent to make the biological porous substance fully adsorb the antibacterial agent, mixing the obtainedmixture with the matrix resin and the processing aid, granulating the obtained mixture, and carrying out tape casting to prepare the film. Hyphae, pomegranate rind, shaddock peel, orange peel, bark and straw are porous substances, and can effectively adsorb the active antibacterial agent so as to achieve the slow release effect of the active antibacterial agent and improve the film performance, so that the long-term antibacterial effect on mutton is achieved; and the raw materials are degradable substances, so the pollution problem of agricultural byproducts and the white pollution problem ofplastic package can be solved, and the additional values of agricultural products can be improved.

Description

technical field [0001] The invention relates to the field of fresh-keeping packaging, in particular to a slow-release antibacterial active fresh-keeping film made of a whole biomass porous material and a preparation method thereof. Background technique [0002] Active antibacterial packaging is a new type of packaging technology, which has an increasingly important position in the field of food preservation and product safety. At present, active antibacterial packaging mostly realizes its function by directly spraying, coating or adding functional antibacterial substances on the packaging film materials. Most of the added antibacterial substances are directly added to the surface or inside of the film, which is easily disturbed by external adverse factors, and volatilizes quickly, making it difficult to maintain freshness for a long time. Select biodegradable natural macromolecular substances as the base material of active packaging film, add natural functional ingredients ...

AI Technical Summary

Problems solved by technology

The prepared plastic wrap can effectively adsorb the active antibacterial agent, so as to achieve the slow release effect of the active antibacterial agent, improve the performance of the film, and achieve long-term antibacterial effect. At the same time, the raw materials are all degradable substances, which can solve the pollution problem of agricultural by-products and The "white pollution" problem of plastic packaging can improve the added value of agricultural products

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