Selenium-containing film coating agent for blueberry preservation

Abstract

A selenium-containing film coating agent for blueberry preservation comprises 0.6%-1.6% of chitosan, 0.05%-0.25% of sodium alginate, 0.01%-0.5% of tea polyphenol, 1.5%-3.5% of calcium chloride, 1.5%-3% of vitamin C, 1%-6% of fructose, 1.5%-3% of sodium chloride, 3.5%-7% of ethyl alcohol, 2% of acetic acid, 35%-55% of towel gourd water and the balance of water. Blueberries preserved by the selenium-containing film coating agent are not required to be cleaned and can be eaten directly; the blueberries contain selenium elements directly, and when a person eats the delicious fruit, the selenium elements are supplemented; the preservation time of the blueberries is prolonged and can last for 2.5-3.5 months, the blueberries cannot lose tastes, and the color luster, the brittleness and the taste are basically not changed; and the selenium-containing film coating agent has no harm to a human body or even can be drunk directly.

Description

technical field [0001] The invention relates to the field of fruit preservation, in particular to a selenium-containing coating agent for blueberry preservation. Background technique [0002] Blueberry (Blueberry), means the meaning of blue berry. One is a low shrub, wild with short feet, small particles, but high anthocyanin content; the second is artificially cultivated blueberries, which can grow to 240cm high, with larger fruits, more water, and relatively high anthocyanin content Low. There are more than 400 species of Vaccinium distributed all over the world. It originates in and is mainly produced in the United States and is also known as American blueberry. my country mainly produces in Daxing'an Mountains and Xiaoxing'an Mountains forest area, especially the central part of Daxing'an Mountains, and it is all pure wild. It has only been successfully domesticated and cultivated in recent years. Blueberry fruit is rich in nutrients. It not only has good nutritional...

AI Technical Summary

Problems solved by technology

[0004] Traditionally used chemical preservatives mainly include fungicides, such as prochloraz, carbendazim, diphenhydramine, thiabendazole, sulfur dioxide, and growth regulators, such as BA and 2,4-D, etc., but traditional chemical preservatives Environmental and food contamination caused by pesticide treatment has become a sensitive issue for consumers, and in some developed countries, chemical fungicides have been banned from use in fruit and vegetable post-harvest treatment. In addition, chemical preservatives have not fundamentally controlled fruit harvesting. The occurrence of later diseases; and the problem of drug resistance also makes chemical control technology face serious challenges