Nano preservative film for preventing edible fungus from deterioration and application thereof

Abstract

The invention relates to a nano preservative film for preventing edible fungus from deterioration and application thereof, and a preparation method and application thereof, belonging to the technical field of agricultural product storage processing. The preparation method comprises the following steps: taking 15 wt% of nano powder (30% of nano silver, 35% of nano titanium dioxide, 25% of nano attapulgite and 10% of nano silicon dioxide), 45 wt% of low density polyethylene, 22 wt% of low density linear polyethylene, 10 wt% of dispersing agent, 5 wt% of lubricant and 2 wt% of coupling agent, evenly mixing, extruding, cooling and carrying out set cutting to obtain a nano master batch; and taking 7.5 wt% of nano master batch, 8 wt% of antifogging agent master batch and 84.5 wt% of low density linear polyethylene, carrying out hot melt, evenly mixing, and running to form the nano preservative film with the thickness of 18 mu m. The nano preservative film is used for packaging edible fungus to form a high-humidity low-oxygen environment; the lower spoilage microorganism activity and ethylene content can effectively inhibit the after growth, deterioration and other phenomena of the edible fungus, effectively maintain the storage quality and enhance the commodity value of the edible fungus; and thus, the nano preservative film has wide market prospects.

Description

1. Technical field [0001] The invention relates to a nano-preservation film for preventing the quality deterioration of edible fungi and an application thereof, belonging to the technical field of storage and processing of agricultural products. 2. Background technology [0002] In recent years, with the transformation of food research from nutritional traditional foods to physiologically regulating functional foods, plant-based functional foods have received more and more attention. The annual output of edible fungi in my country accounts for more than 75% of the world's total output, and its total output value ranks sixth in my country's planting industry after grain, cotton, oil, vegetables, and fruits. At present, there are 70 to 80 cultivated species of edible fungi in my country, 50 species are commercialized, and more than 20 species are produced on a certain scale. Edible fungi are rich in various nutrients and functional components, and their consumption is increas...

AI Technical Summary

Problems solved by technology

However, there are still three problems to be solved in the previously developed nanomaterials: (1) In terms of appearance, due to the addition of nanoparticles and anti-fogging agents, the transparency of the previous nanomaterials is not high, which is not conducive to commercial sale; (2) In terms of microstructure, the nanoparticles are large and unevenly distributed, and agglomeration occurs in some areas; (3) In terms of safety, the silver ion content of nanomaterials was high before, and there was a certain risk of metal migration during storage

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