Fruit vegetable transporting and fresh-keeping method and fruit vegetable fresh-keeping carriage as well as fruit vegetable fresh-keeping vehicle

Abstract

The invention relates to a fruit and vegetable transporting and preserving method by using ozone as well as a fruit and vegetable preserving carriage and a fruit and vegetable preserving vehicle. The fruit and vegetable transporting and preserving method is that the ozone is injected into a thermal-insulating fruit and vegetable storage space with a certain shape and volume and not sealed completely; proper ozone density and proper humidity are remained in the space which is not sealed completely, the humidity is maintained at 50-95 percent and the ozone density is maintained at 3ppm-25ppm. The fruit and vegetable preserving carriage comprises a carriage body; a thermal-insulating layer is arranged on the internal surface of the carriage body; the escape pipe of a preserving machine installed on the external wall of the carriage body is communicated with the intake pipe of an ozone delivery pipe network fixed on the inner surface of the roof plate of the carriage; an electric fan and a fine atomizing spray head are also fixed on the inner surface of the roof plate of the carriage; at least one ventilation silicon window communicated with the carriage body is arranged on the flank of the carriage body. The fruit and vegetable preserving vehicle comprises a fruit and vegetable preserving carriage. The invention provides a fruit and vegetable preserving carriage and a fruit and vegetable preserving vehicle with sound preserving effect and low power consumption.

Description

(1) Technical field: [0001] The invention relates to a method for transporting and preserving fruits and vegetables, a compartment for preserving freshness of fruits and vegetables, and a vehicle for preserving freshness of fruits and vegetables, in particular to a method for transporting and preserving freshness of fruits and vegetables using ozone for preserving freshness, a compartment for preserving freshness for fruits and vegetables, and a compartment for preserving freshness for fruits and vegetables. (two), background technology: [0002] my country is a big fruit and vegetable production and sales country, especially in recent years, my country's fruit and vegetable planting industry has developed by leaps and bounds. In 2000, the national fruit product output reached 62 million tons, accounting for 14% of the world's fruit output, and the per capita fruit output is nearly 50 kg. In 2001, my country's vegetable planting area reached 13 million hectares, and the output...

AI Technical Summary

Problems solved by technology

The existing fresh-keeping technologies often affect the quality of fruits and vegetables to varying degrees during the fresh-keeping process, or the cost of fresh-keeping is too high to be widely promoted. The existing methods of fruit and vegetable transportation include: refrigerated transportation, preservative soaking Transportation, fresh-keeping bag sealed transportation and fresh-keeping coated transportation, these methods all have many shortcomings: refrigerated transportation often causes browning inside the fruit, wet cracking, softening of the skin, uneven ripening, poor appearance after ripening, and some fruits are damaged. After refrigerating, it cannot even be post-ripened, and the taste will change greatly. Refrigeration will also cause some thermophilic bacteria, molds and yeasts to grow, destroying the stored fruits and vegetables; the disadvantage of transportation after soaking in preservatives is the problem of drug residues. The preservatives used include Tekodol, Prochloraz, Imazalil, Prodigyne, Etoconazole, Carbendazim, Benite, etc., as well as calcium salts and 1-MCP that regulate postharvest physiological activities. It will have an adverse effect on human health; due to the use of PVC plastic sealed bags for fresh-keeping bags, its non-degradability and air-tightness will bring a lot of white pollution and dehydration and rot of a large number of fruits and vegetables during the transportation of fruits and vegetables; after fresh-keeping coating The main components of the coating film during transportation are compounded by paraffin wax, palm wax and microcrystalline wax. In addition, there are shellac, food-grade synthetic resin, etc. This kind of plastic wrap can prevent fruit dehydration, but the process is cumbersome and expensive.

[0004] The patent document with the publication number CN 2380459Y discloses a fruit and vegetable fresh-keeping transport vehicle, which adopts ozone for sterilization and disinfection on the basis of refrigeration and fresh-keeping. Although the fresh-keeping effect is improved, the structure of the whole fresh-keeping vehicle is complex, high power consumption, and this document does not disclose the specific concentration of ozone used; the patent document with publication number CN 1579175A discloses a fruit and vegetable fresh-keeping storehouse. Although ozone is also used for sterilization and disinfection, it is more suitable for fixed warehouses, not suitable for moving transport carriages

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