Industrialized refrigeration fresh-keeping method of greenhouse vegetable

Abstract

The invention discloses an industrialized refrigeration fresh-keeping method of greenhouse vegetables. The method is characterized by comprising the following steps: (1) precooling, (2) color shield treatment, (3) sterilization of fruits and vegetables, (4) drying and spraying of antistaling agent, (5) inflation and packaging, and (6) low temperature storage. The fruits and vegetables are soaked in warm water and subjected to ice water pre cooling to avoid excessive cold and improve the preservation quality; the fresh- keeping ingredients are non-polluting, non-toxic and harmless, and will not impact human health; by adjusting the ratio of gas mixture, the speed of metabolism of fruits and vegetables is further inhibited, and the respiration rate is decreased, so as to prolong the shelf life of fruits and vegetables; and the fruits and vegetables can achieve freshness in the inside, unchanged external color, no loss of juice, and good fresh-keeping effect.

Description

technical field [0001] The invention belongs to the technical field of freezing and fresh-keeping of vegetables and fruits, and in particular relates to an industrialized cold-keeping and fresh-keeping method of fruits and vegetables in greenhouses. Background technique [0002] Greenhouse fruits and vegetables are to cultivate tomatoes, cucumbers, grapes and other fruits and vegetables in greenhouses for off-season production. This planting mode has become quite common. Reasonable selection of shed type is one of the key measures to ensure high yield, high quality and high efficiency of greenhouse vegetables. Since there are no water droplets attached to the surface of the drip-free film, it can increase the light transmittance and increase the amount of light entering, which is conducive to improving the yield and quality of vegetables. The construction cost of plastic greenhouses is relatively high, and making full use of the greenhouse space for three-dimensional planti...

AI Technical Summary

Problems solved by technology

Because fruits and vegetables are extremely intolerant to storage, seasonality is obvious, and the harvest period is short, a large number of fruits and vegetables enter the consumer market. Because there is no effective preservation method, fresh fruits and vegetables are cheap or discarded, which is a waste of hard work for fruit farmers throughout the year.

In the traditional storage process, in order to effectively prevent insect damage and mildew, some illegal or prohibited pesticides are used in production, which affects the health of consumers and the ecological environment.

Ordinary refrigeration methods, due to freezing for too long, freeze and destroy the cells in the fruits and vegetables. After thawing, electrolyzed water will be generated, and the fruits and vegetables will lose their original taste and the value of freshness.