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Method for sterilization of powdery or granular substances and apparatus for the sterilization by the method

A sterilization method, powder and granular technology, which is applied in applications, preservation of seeds through pressure changes, heating preservation of fruits/vegetables, etc., can solve the problems of large-scale equipment and the inability to improve processing efficiency, and achieve the effect of shortening the contact time

Active Publication Date: 2011-05-04
FUJIWARA TECHNO ART CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has to be carried out in batches in order to maintain the pressurized state for several minutes, and there is a problem that the processing efficiency cannot be improved.
In addition, if it is not a device that can withstand a high pressure of up to 60 atmospheres like in Example 4, this method cannot be implemented, and there is a problem of increasing the size of the device.

Method used

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  • Method for sterilization of powdery or granular substances and apparatus for the sterilization by the method
  • Method for sterilization of powdery or granular substances and apparatus for the sterilization by the method
  • Method for sterilization of powdery or granular substances and apparatus for the sterilization by the method

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Embodiment Construction

[0088] Hereinafter, examples of the present invention will be specifically described. figure 1 It is a flowchart showing the flow of the method for sterilizing powder or granular bodies of the present invention. figure 2 It is a figure which schematically shows the structure of one Example of the sterilization apparatus using the method of sterilizing a powder or granular body of this invention.

[0089] The present invention as figure 1 As shown, it is characterized in that it is processed through the following steps, heating and pressing step 11, that is, supplying the powder or grain body 1 to the heating gas flow pipe, and using the heated condensable gas to heat the powder or grain body under the heating and pressurizing conditions. Transport in the gas flow tube; and instant decompression sterilization process 12, that is, the heated condensable gas and powders are instantly released into a space lower than the pressure of the heated gas flow tube, so that the moisture...

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Abstract

Provided are a method for the sterilization of powdery or granular substances which can protect powdery or granular substances from quality deterioration caused by heating and which can attain sufficient sterilization effect and a sterilization apparatus suitable for the method. A method for the sterilization of powdery or granular substances, characterized by comprising the heating / pressurizing step of feeding a powdery or granular substance into a heating gas flow pipe kept in a heated and pressurized condition and transferring the powdery or granular substance while bringing the powdery or granular substance into direct contact with a condensable heating gas for 0.008 to 2 seconds in the heating gas flow pipe and the instantaneous vacuum sterilization step of releasing the condensable heating gas and the powdery or granular substance instantaneously into a space having a pressure lower than that in the heating gas flow pipe to boil the water contained in microorganisms adhering to the powdery or granular substance and thus destroy the tissue of the microorganisms; and an apparatus for the sterilization of powdery or granular substances by the method.

Description

technical field [0001] The present invention relates to a method of sterilizing powder and granular materials capable of adequately sterilizing by destroying microorganisms from the inside by heating and rapid decompression, and minimizing the deterioration of the quality of the object to be sterilized, and a sterilizing device using the method . In addition, the method for sterilizing powder and granular bodies of the present invention and the sterilizing device using the method can also be applied to insecticidal and ovicidal treatments of pests and their eggs. Background technique [0002] Wheat flour, rice flour, pepper and other condiments, tea powder, green algae powder, cosmetic powder and other powder and granular surfaces will be polluted by microorganisms such as bacteria and mold falling in the atmosphere. Due to the proliferation of microorganisms, the quality of these granules deteriorates over time. In particular, during the transportation or processing of po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/22A61L2/06
CPCA23B7/00A23B7/005A23B9/005A23B9/02A23L3/0155A23L3/225A61L2/07A23L3/005A23L3/015A23L3/22A23L3/36
Inventor 狩山昌弘平田利雄佐藤文宏森章武部英日
Owner FUJIWARA TECHNO ART CO LTD
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