Processing system and processing method of safe automatic coloring of picked fruits and vegetables

Abstract

The invention discloses a processing system and processing method of safe automatic coloring of picked fruits and vegetables. The processing system comprises: a storehouse, and an ethylene control system and a CO2 control system, which are connected to the storehouse. The ethylene control system comprises an ethylene conveying tube, wherein an outlet port of the ethylene conveying tube is arranged in the storehouse; an inlet port of the ethylene conveying tube is connected to an ethylene gas tank; and the ethylene conveying tube is provided with a solenoid valve, and the ethylene control system further comprises an ethylene sensor arranged in the storehouse. The CO2 control system comprises a CO2 sensor, and an air-intake fan and an exhaust fan, which are arranged on two walls, opposite to each other, of the storehouse. The solenoid valve, the air-intake fan, the exhaust fan, the ethylene sensor, and the CO2 sensor are all connected to a first micro-computer control terminal. By accurately automatically controlling the concentration of CO2 and ethylene in the storehouse, a process of coloring picked fruits and vegetables is started, that is, the picked fruits and vegetables are safely ripened or de-greened. Color and luster of the picked fruits and vegetables is enhanced, and the appearance commodity value is increased.

Description

technical field [0001] The invention relates to a processing technology for harvested fruits and vegetables, in particular to a safe and automatic color-changing processing system and processing method for harvested fruits and vegetables. Background technique [0002] At present, post-harvest ripening of fruits and vegetables in my country generally adopts ethephon soaking or spraying to accelerate the ripening. For example, the operation method of ethephon to ripen bananas is: make the commercially available ethephon into a 500-1000ppm aqueous solution, and put the banana handle in the solution. Take it out immediately after soaking in water, or spray / drew the prepared ethephon solution on the surface of the banana fruit, drain the water, seal the banana with a plastic film (bag), and place it at an ambient temperature of 18-20°C. After 2-3 days, the skin will turn yellow and the pulp will become soft. [0003] Ethephon is a synthetic organic phosphorus plant growth regulato...

AI Technical Summary

Problems solved by technology

At present, there are a small number of degreening warehouses in China that use ethylene gas to degreen citrus, but the control of degreening parameters is not accurate, and there is no CO 2 Parameter control, the degree of automation is not high, it is easy to cause dehydration and softening of the fruit during the degreening process, and the peel is affected by CO 2 Injury, fruit storage and shelf life reduction after degreening

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