Low-temperature plasma device used for food sterilization and freshness retaining

A low-temperature plasma and plasma technology, applied in the fields of plasma, food preservation, application, etc., can solve the problems of unsatisfactory sterilization effect, residual chemical substances, high cost, easy popularization and promotion, inhibition of enzyme activity, cost low cost effect

Pending Publication Date: 2017-10-10
YUNNAN AEROSPACE IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional fresh-keeping and sterilization methods include sulfur dioxide fumigation, ultraviolet light, etc., but these me

Method used

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  • Low-temperature plasma device used for food sterilization and freshness retaining
  • Low-temperature plasma device used for food sterilization and freshness retaining
  • Low-temperature plasma device used for food sterilization and freshness retaining

Examples

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Embodiment Construction

[0013] In conjunction with the accompanying drawings, a low-temperature plasma device for food disinfection and preservation includes a rectangular housing 3, an opening and closing door 4 is installed on the outside of the housing 3, a circuit control module 5, and a housing are arranged on the inside of the opening and closing door 4. 3 is provided with not less than two layers of horizontal pallets 1 for containing articles, and the plasma generator 2 is arranged directly below the horizontal pallet 1 and connected to the horizontal pallet 1 through an insulating medium 1-1. The upper bottom surface of the plasma generator 2 is a ground electrode 2-3 connected to the metal plate 2-1 on the lower bottom surface through an insulating medium 2-4, the ground electrode 2-3 is made of stainless steel, and the metal plate 2-1 is connected to the high voltage The ends are connected, and the ground electrode 2-3 is grounded; the ground electrode 2-3 on the bottom surface of the plasm...

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PUM

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Abstract

A low-temperature plasma device used for food sterilization and freshness retaining includes a supporting plate for placing food, a plasma generation device, a shell, a door and a circuit control module. The supporting plate and the plasma generation device are connected through an insulating medium, spray points of the plasma generation device are welded on a metal plate, the metal plate and a ground electrode are connected through an insulating medium, the spray pints are arranged in centers of circular holes of the ground electrode, the metal plate is connected with a high voltage end which is connected with a high voltage power supply, and the ground electrode is connected to the ground. The device generates plasma through a special discharge structure, utilizes ionic wind to drive flow of air, some active ingredients in the plasma react with microorganisms on the surface of food, thereby killing the microorganisms, the active ingredients react with some enzymes inside the food, thereby inhibiting activity of the enzymes, the decomposition rate of organic matter is slowed down, food and daily utensils are sterilized, and the shelf life of food can be prolonged, thereby realizing sterilization and freshness retaining of food under a low-temperature condition.

Description

technical field [0001] The invention relates to the technical field of food disinfection and preservation, in particular to a low-temperature plasma device for integrating food disinfection and preservation. Background technique [0002] During the food storage process, due to environmental impact or long storage time, some foods will deteriorate or rot. There are three main reasons for food deterioration: 1. Microbial decomposition: Microorganisms exist everywhere in the environment. Food is easily contaminated by microorganisms during production, processing, transportation, and storage. As long as the temperature is appropriate, microorganisms will grow and reproduce in large numbers and decompose Nutrients in food and protein in food will emit foul and sour taste after being destroyed; 2. Enzyme action: Under the action of various enzymes, the nutrients in food are decomposed into a variety of products, and the rice becomes rancid, Fruit rot is caused by carbohydrates be...

Claims

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Application Information

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IPC IPC(8): H05H1/24A23L3/26
CPCA23L3/26H05H1/2406
Inventor 苏晓飞罗东昆刘石伟吴征威王建新张军傅劲裕
Owner YUNNAN AEROSPACE IND
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