Compound plant extract antibacterial preservative film and preparation method thereof

Abstract

The invention discloses a compound plant extract antibacterial preservative film and a preparation method thereof. The preservative film is prepared from the following raw materials in parts by weight: 10 to 30 parts of rhizoma galangae, 20 to 40 parts of thyme, 5 to 20 parts of liquorice roots, 5 to 20 parts of radix et rhizoma rhei, 15 to 35 parts of fructus cnidii, 15 to 30 parts of fructus litseae cubebae, 5 to 15 parts of chitosan, 2 to 10 parts of glycerol, 5 to 20 parts of bonding agent starch and 5 to 15 parts of gelling agents. The compound plant source preservative with the specificmatching rule and dosage used in the invention can effectively inhibit the growth of various pathogenic microorganisms in broad spectrum; the prepared preservative film can solve the problem of poor antibacterial and mould proof effects of the ordinary chitosan preservative film; the bonding agent starch is added, so that the film forming performance in the preparation process can be improved; thecost is reduced. The prepared compound plant source preservative-chitosan-starch antibacterial preservative film has the advantages that the used raw materials are edible, achieves the green environment-friendly and healthy effects, and can be applied to fruit vegetable and food fresh keeping.

Description

technical field [0001] The invention relates to the field of fresh-keeping of fruits, vegetables and food, in particular to a compound plant extract antibacterial fresh-keeping film and a preparation method thereof. Background technique [0002] During the post-harvest storage and transportation of fresh fruits and vegetables, due to the infection of various pathogenic microorganisms and metabolic activities such as ethylene respiration, the fruits and vegetables will rot and deteriorate, causing huge economic losses. According to incomplete statistics, the annual fruit and vegetable rot loss rate in my country reaches 30% to 50%. The most common methods used in production are refrigeration and chemical fungicide treatment. Low-temperature storage has problems such as high cost, high energy consumption, and imperfect cold chain facilities, while chemical residues endanger human health, produce drug resistance, and affect export trade. Thereby, develop natural, efficient, s...

AI Technical Summary

Problems solved by technology

The compound plant-derived antistaling agent with specific compatibility rules and doses used in the present invention can efficiently and broadly inhibit the growth of various pathogenic microorganisms, and the prepared preservative film can solve the antibacterial and anti-mildew effect of ordinary chitosan preservative film bad question