Pulsed light sterilizing device and sterilizing method

A sterilization device and pulsed light technology, applied in heating, irradiation and other directions, can solve the problem of small application range, achieve the effect of good sterilization effect, convenient disassembly and assembly, and ensure stability

Inactive Publication Date: 2015-07-22
杭州立高检验检测技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only for liquid food, small range of application

Method used

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  • Pulsed light sterilizing device and sterilizing method
  • Pulsed light sterilizing device and sterilizing method
  • Pulsed light sterilizing device and sterilizing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The pulsed light sterilizing device of the present invention is applied to a sterilizing method for sterilizing the surface of tomatoes, which can perform preliminary sterilization on tomato raw materials, and reduce the initial number of colonies of microorganisms on the surface of tomatoes.

[0036] It is characterized in that the steps are as follows: a. The pulse light sterilizing device is installed at 30 cm above the surface of the conveying line, and the thickness of the tomato on the conveying line is a single layer; b. Exciting current makes the pulse light lamp work to generate pulse light, and the duration of a single pulse is 0.2 s, the tomato rolls under the pulsed light; c, the input voltage of the pulsed light tube after transformation is 1500V, and the pulse frequency is 20 times per minute.

[0037] Experimental method: use a sterile bag, randomly take whole tomato samples before pulse light sterilization as the first group, randomly take the whole tomat...

Embodiment 2

[0047] The pulsed light sterilizing device of the present invention is applied to the sterilization method of milk product packaging boxes, and can sterilize the milk product packaging boxes. The number of initial microbial colonies and heat-resistant bacillus are mainly used to assist the subsequent thermal sterilization process. .

[0048] It is characterized in that the steps are as follows: a. The pulse light sterilization device is installed 30 cm above the surface of the conveying line, and the thickness of the milk product packaging box on the conveying line is a single layer; b. Exciting current to make the pulse light lamp work, generating pulse light, single pulse The duration is 0.2s, and the dairy product packaging box passes under the pulsed light; c. After the voltage is transformed, the voltage input to the pulsed light tube is 2000V, and the pulse frequency is 30 times per minute.

Embodiment 3

[0050] The pulsed light sterilization device of the present invention is applied to the sterilization method of tofu stalls and cooked food stalls in the market, can sterilize the tofu stalls and cooked food stalls, and effectively reduce the number of microbial colonies such as yeast-based bacteria.

[0051] It is characterized in that the steps are as follows: a. The pulse light sterilization device is placed 20cm above the surface of the booth; b. Excitation current makes the pulse light lamp work to generate pulse light, and the duration of a single pulse is 0.2s; c. Input pulse after voltage transformation The voltage of the light tube is 1200V, and the pulse frequency is 15 times per minute.

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PUM

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Abstract

The invention relates to a pulsed light sterilizing device and a sterilizing method. The pulsed light sterilizing device comprises a protective cover, a cooling cover and a plurality of pulsed light lamps, wherein a cooling fan is mounted in the middle of the protective cover; the plurality of pulsed light lamps are distributed on the two sides of the cooling fan; each pulsed light lamp comprises a tube and a lamp cover; the tube is mounted in the arc lamp cover; xenon is loaded in the tube; electrodes are inserted into the two ends of the tube in a sealing manner; the pulsed light lamps are operated through laser current, so as to produce pulsed light; the single pulse duration is 0.2 s; the voltage input into the pulsed light lamps is 1200 to 2000 V after voltage transformation; the pulse frequency is 15 to 30 times per minute.

Description

technical field [0001] The invention relates to a pulse light sterilization device and a sterilization method. Background technique [0002] Processed tomatoes are widely planted in Xinjiang, Gansu, Inner Mongolia and other places, and tomato paste is an important export product for local foreign exchange earners. In production, when tomato raw materials are seriously polluted by microorganisms, if the tomato paste is produced by conventional processing methods, some microorganisms on the surface of the cleaned tomato cannot be effectively killed, and the phenomenon of gas swelling bags will occur during the storage period of the tomato paste, so that the quality of the product is stable. There are hidden dangers in terms of sex and food safety. [0003] Chinese patent CN1507921A discloses a liquid and liquid food sterilization method, including applying a high electric field pulse with a pulse width of less than 200NS and a pulse rise time of less than 50NS, and an electri...

Claims

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Application Information

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IPC IPC(8): A61L2/04A61L2/08
Inventor 杨勇
Owner 杭州立高检验检测技术研究院有限公司
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