Low-temperature plasma continuous fruit and vegetable fresh-keeping processing device and using method thereof

Abstract

The invention relates to a low-temperature plasma continuous fruit and vegetable fresh-keeping processing device and a using method thereof. The device comprises a cabinet, a housing, a hood, a plasmagenerator, a fan, and a transmission mechanism. The plasma generator is formed by an array of mul;tiple insulating tubes with metallized inner wall surface, an inner wall metal layer acts as a plasmagenerating electrode, the insulating tube acts as a medium barrier layer, and a cooling liquid is introduced to the tube to simultaneously cool the electrode and a tube wall. The fan diverts airflowfrom top to bottom, and a directional gas forms plasma after passing through the plasma generator, the plasma directionally flows to the surface of tumbling and flowing fruits and vegetables, and thesurface of the tumbling and flowing fruits and vegetables is sterilized at 360 degrees without dead angle to achieve a preservation effect. Accordinfg to the invention, the sterilization and fresh-keeping process is carried out under normal temperature and normal pressure, and a dry sterilization and fresh-keeping treatment is adopted. The plasma reacts with residual agents on the surface of the fruits and vegetables, degrades and eliminates the residual agents, does not damage the quality of food, maximizes original ecological freshness, prolongs a shelf life, has near zero emission, and doesnot pollute the environment.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a low-temperature plasma continuous fresh-keeping treatment device for fruits and vegetables and a use method thereof. Background technique [0002] As we all know, food and agricultural products are susceptible to microbial contamination during growth and processing, which eventually leads to food corruption and deterioration. With the improvement of people's living standards, people pay more and more attention to food safety and food quality. The storage and preservation of modern fruits and vegetables often use methods such as freezing, air conditioning, and chemical preservatives. Freezing and modified atmosphere fresh-keeping methods require a large investment, and there are many supporting power equipment and testing equipment. It is difficult to inhibit the growth of mold and eliminate the shortcomings of residual chemicals. Chemical preservatives are mainly spra...

AI Technical Summary

Problems solved by technology

The electrode of this invention adopts U-shaped curved hollow stainless steel tube, which is connected with the external cooling circulation system, the cooling speed is slow, and the working efficiency of the plasma generator is low; the use of metal conveyor belt transmission cannot achieve 360-degree non-dead angle sterilization and preservation of the surface of fruits and vegetables Effect

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