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Method and device for killing harmful bacteria in tea in tea making process

A sterilizing device and harmful bacteria technology, which is applied in the field of microbial heat treatment and sterilization, can solve the problems of tea zooming, affecting the quality of tea, and the steaming taste of tea, and achieve the effect of increasing the killing effect

Inactive Publication Date: 2010-05-26
湖南出入境检验检疫局检验检疫技术中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessively increasing the heat treatment temperature will cause the tea leaves to burn and seriously affect the quality of the tea leaves. If the heat is not dissipated in time, the tea leaves will have a stuffy smell

Method used

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  • Method and device for killing harmful bacteria in tea in tea making process
  • Method and device for killing harmful bacteria in tea in tea making process
  • Method and device for killing harmful bacteria in tea in tea making process

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Embodiment 1

[0018] For the heat preservation and sterilization device provided by the invention, see figure 1 , including a housing 1, a material inlet 2 arranged at the upper part of one end of the housing, and a material outlet 3 at the lower part of the other end, and a material conveying device 4 matching the material inlet and the material outlet in the housing. A clean air duct 5 is arranged on the upper part of the shell 1, and the clean air duct 5 is connected with a clean fan 6, and an air volume control valve 7 and an air volume meter 8 are arranged on the clean air duct 5. An airflow equalization device 10 is also provided between the conveying device 4 and the outlet 9 of the clean air duct.

Embodiment 2

[0020] Study on the Microbial Sterilization Effect in Tea under the Condition of Heat Treatment Sterilization and Delayed Insulation and Clean Air

[0021] Two heat treatment processes are selected: chain plate drying and fluidized bed processing, and the device of the present invention is used to study the effect of microbial treatment. And count the mold, Escherichia coli, Salmonella and Staphylococcus aureus after treatment.

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PUM

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Abstract

The invention relates to a microbian heat-treatment sterilization method and a device thereof for removing mould fungus, colibacillus and other pathogens in tea. The invention processes mould fungus, colibacillus and other pathogens in deactivated tea by designing a time-delay thermal insulation sterilization method and a device thereof. The method for killing harmful bacteria in tea in the tea making process is realized in a way as follows: the tea which is heat-treated in the tea making process is processed by thermal insulation in the pure air atmosphere at 40-80 DEG C for some time, and packaged in the pure air. The invention designs the time-delay thermal-insulation and the pure air treatment in view of the prior heat drying mode for tea in China, thereby enhancing the effect of the tea heat treatment on killing harmful bacteria. The device is simple and easy to realize, and does not need to increase large amounts of energy consumption on the basis of the original heat treatment. The invention has high practicability and popularization value.

Description

technical field [0001] The invention relates to a method and a device for microbiological heat treatment and sterilization of some pathogenic bacteria such as mold and Escherichia coli in tea. Background technique [0002] Planting tea has a history of thousands of years in my country, and the tea industry occupies an extremely important position in my country's agricultural output. Tea quality and safety mainly includes factors such as pesticide residues, harmful heavy metal residues, harmful microorganisms, non-tea foreign matter and dust pollution, involving two processes of raw material production and processing of tea. It is worth noting that the harmful microbial pollution in tea is another technical barrier restricting the export of tea in my country after pesticide residues. [0003] Mold, Escherichia coli and some pathogenic bacteria are currently the hygienic control items proposed for the hygienic requirements of tea in the world. The control of harmful microorg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/06
Inventor 朱金国黄志强
Owner 湖南出入境检验检疫局检验检疫技术中心
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