Fruit and vegetable fresh keeping integrated machine and method

Abstract

The invention provides a fruit and vegetable fresh keeping integrated machine. The fruit and vegetable fresh keeping integrated machine comprises cold chain equipment, an air pipeline, a refrigeratingand cooling device, a heating and warming device, a humidifying and sterilizing device and a computer control system. The invention also provides a fruit and vegetable fresh keeping method. The fruitand vegetable fresh keeping method comprises the following steps of according to requirements of different fruits and vegetables, presetting storage and fresh keeping parameters through the computercontrol system; and according to actual monitoring data, controlling the working condition of the refrigerating and cooling device, the working condition of the heating and warming device and the working condition of the humidifying and sterilizing device, and performing monitoring and controlling on the temperature, the humidity and the ozone concentration in the cold chain equipment in a real-time manner, so that the storage and fresh keeping period of fruits and vegetables is prolonged.

Description

technical field [0001] The invention relates to the technical field of food preservation, in particular to an integrated fruit and vegetable preservation machine and method. Background technique [0002] To prolong the storage and preservation period of fruits and vegetables, it is necessary to meet the requirements for the storage environment of fruits and vegetables to have suitable temperature, humidity, oxygen content, carbon dioxide content, ethylene content and good sterilization and antibacterial effects. At present, the cold chain equipment commonly used by people is cold storage, refrigerated trucks, refrigerator freezers, etc., by reducing the temperature of the storage environment to inhibit the respiration of fruits and vegetables and prolong the freshness period of fruits and vegetables. [0003] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: [0004] First of all, cold stor...

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Problems solved by technology

[0004] First of all, cold storage often only has cooling and cooling systems, and some refrigeration systems also have auxiliary heating devices, but the sensitivity of various fruits and vegetables to environmental factors varies. The temperature adjustment method of various fruits and vegetables is difficult to meet the storage temperature requirements of such fruits and vegetables, and it is easy to cause chilling damage to fruits and vegetables;

[0005] Secondly, low oxygen or high carbon dioxide concentration in the storage environment of fruits and vegetables can easily lead to hypoxia and high carbon dioxide damage to fruit and vegetable products. There is no suitable method for adjusting the gas content of fruits and vegetables in the prior art, resulting in partial collapse and browning of the epidermal tissue of fruits and vegetables. changes, softening and other diseases

[0006] Thirdly, the current ozone sterilization methods used for fruits and vegetables cannot accurately control the concentration and action time of ozone. Due to the strong oxidizing properties of ozone, too high concentration and action time of ozone will cause great damage to fruits and vegetables, thereby limiting the ozone Promote application in cold storage

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