Preparation method for fresh-keeping film coating agent for fruits

Abstract

The present invention relates to a preparation method for a fresh-keep film coating agent for fruits, and belongs to the technical field of preparation of the film coating agent. The preparation method disclosed by the invention comprises the following steps of firstly, drying substances of folium llicis latifoliae, white peony roots and the like, then performing crushing, performing extraction with an ethanol solution, collecting an extract, and performing concentrating so as to obtain a concentrated solution; then squeezing substances of carrots, epipremnum aureum, and the like, to obtain carrot juice, epipremnum aureum juice and the like, and performing mixing and blending with substances of potassium nitrate, calcium chloride, and the like so as to obtain a culture solution; after being sterilized, performing inoculating with antagonistic bacteria, and performing culturing, so as to obtain a bacteria solution; and finally, performing mixing and blending with the concentrated solution, and then adding carboxymethyl chitin so as to obtain the fresh-keeping film coating agent for fruits. When the fresh-keeping film coating agent for fruits prepared by the preparation method disclosed by the present invention is used, fermentation cannot be caused, so that the condition that ethanol and aldehydes are accumulated in films to cause peculiar smell, and the quality of fruits and vegetables is influenced, is avoided, and pollution cannot be caused in a treatment process.

Description

technical field [0001] The invention relates to a preparation method of a fruit fresh-keeping coating agent, which belongs to the technical field of coating agent preparation. Background technique [0002] The harvest time of fresh fruits is relatively concentrated, resulting in low selling prices of domestic fruits during the harvest period. Moreover, the shelf life of fresh fruits is short, coupled with the poor storage conditions of domestic fruits, post-harvest rot is common, resulting in large losses for fruit farmers and seriously affecting economic benefits. The postharvest storage technology of fruit has become the bottleneck of the development of fruit planting industry in my country. The traditional fresh fruit storage method is through low-temperature refrigeration, but there are problems such as the rapid loss of the original fruit color, taste, and nutritional components during the storage process. After the fruit is harvested, it breathes by consuming nutrien...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: when the existing chemical polymer coating agent preserves fruits and vegetables, it will induce fermentation, accumulate ethanol and aldehydes in the film, produce peculiar smell, and cause the problem of deterioration of the quality of fruits and vegetables. Kudingcha, white peony and other substances are dried and crushed, extracted with ethanol solution, the extract is collected, concentrated to obtain a concentrated solution, and carrots, green radishes and other substances are squeezed, mixed with potassium nitrate, calcium chloride, etc. and other substances are mixed and stirred to obtain a culture solution, which is sterilized, inoculated with antagonistic bacteria, cultured to obtain a bacterial solution, and finally mixed with a concentrated solution, and then carboxymethyl chitosan is added Get Fruit Preservation Coating Agent