Fruit and vegetable fresh-keeping agent and preparation method thereof

Abstract

The invention discloses a fruit and vegetable fresh-keeping agent and a preparation method thereof. The fruit and vegetable fresh-keeping agent comprises the following components in percentage by mass: 20-30 percent of lacquer wax emulsion, 0.5-2 percent of toxicodendron vernicifluum seed kernel oil, 45-70 percent of water, 5-15 percent of ethanol, 0.05-0.1 percent of nanometer titanium dioxide, 0.5-3 percent of propylene glycol or glycerin, 0.5-2 percent of Tween, 0.01-0.02 percent of a silane coupling agent, 1-2 percent of chitosan, 0.1-0.5 percent of acetic acid, 0.5-2 percent of maltodextrin, 0.1-1 percent of sucrose fatty acid ester and 0.5-2 percent of glycerin monostearate. The fruit and vegetable fresh-keeping agent has the advantages of high film-forming property, good emulsifying property, high stability, and good preservation property; the glossiness and commodity of fruits and vegetables coated with the fruit and vegetable fresh-keeping agent are good, and the shelf life of the fruits and the vegetables coated with the fruit and vegetable fresh-keeping agent is prolonged.

Description

Technical field

[0001] The present invention involves the field of fruit and vegetable freshness keeping processing, and specifically involves a fruits and vegetable preservation agent and their preparation methods. Background technique

[0002] The production, sales and exports of fruits and vegetables in my country are very large, but in the process of transportation and storage, the loss caused by mildew reached 25%-30%, and the severe as high as 40%.Therefore, the research of fruit and vegetable freshness technology has obvious social and economic benefits, and it is also a hot spot in domestic and foreign research.In recent years, the common technologies that have been used in recent years include refrigerated, gas -tone storage, decompression storage, gas -tone packaging membrane and chemical treatment. However, these fresh -keeping technologies have high energy consumption, large investment or toxic side effects.With the development of modern fresh preservation technology,...