Nano-scale fruit and vegetable fresh-keeping coating agent and its preparation method and application

Abstract

The invention provides a nano-scale fruit and vegetable fresh-keeping coating agent and its preparation method and application, and relates to the technical field of fruit and vegetable preservation. The fruit and vegetable fresh-keeping coating agent includes the following components in parts by mass: 25-35 parts of carnauba wax , 4-8 parts of myristic acid, 0.5-1.5 parts of sucrose fatty acid ester, 0.1-1 part of sorbic acid, 2-6 parts of ammonia water and 120-180 parts of water, alleviating the existing problem of using chemical preservatives for fruit and vegetable preservation Hidden health hazards, the use of natural preservatives cannot meet the technical problems of large-scale fruit and vegetable preservation. The present invention uses carnauba wax, myristic acid, sucrose fatty acid esters, sorbic acid, ammonia and water to make nano-scale fruit and vegetable fresh-keeping coatings. It is uniform and stable, has excellent antibacterial ability, can effectively reduce the weight loss of fruits and vegetables, inhibit the respiration rate of fruits and vegetables, reduce the rate of decay, maintain the quality of fruits and vegetables, extend the shelf life, and can be produced on a large scale, with broad application prospects.

Description

technical field [0001] The invention relates to the technical field of fruit and vegetable preservation, in particular to a nano-scale fruit and vegetable fresh-keeping coating agent and a preparation method and application thereof. Background technique [0002] Fruits and vegetables have high nutritional value and rich nutrient content, and are the main components of human dietary nutrition. At present, about 80 million tons of vegetables and fruits rot in my country every year, the postharvest loss rate of fruits and vegetables is as high as 20-40%, and the total loss value is nearly 80 billion yuan. The storage and preservation of fruits and vegetables is a crucial issue in the production, storage and sales of fruits and vegetables. [0003] At present, the preservatives used for the storage of fruits and vegetables mainly include chemical preservatives and natural preservatives. Chemical preservatives have good bactericidal effect but are harmful to human health due to ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a nano-scale fresh-keeping coating agent for fruits and vegetables, so as to alleviate the existing technical problems of using chemical preservatives to preserve fruits and vegetables, which has hidden health risks, and the use of natural preservatives cannot meet the needs of large-scale fruit and vegetable preservation.

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