Method for arranging nozzle holes of collector nozzle in airborne microorganism collection device and airborne microorganism collection device

Abstract

In the present invention, in order to provide a method in which airborne bacteria contained in the air sucked from the nozzle hole formed on the collecting nozzle are attached to the surface of the carrier while rotating the petri dish containing the carrier by an inertial method. In such a case, it is difficult to arrange the nozzle holes of the trapping nozzles of the airborne bacteria trapping device that causes depressions on the carrier, and the petri dish (3) containing the carrier (2) is rotated while the inertial method is used. The nozzle of the trapping nozzle (1) of the airborne microbe trapping device in which airborne microbes contained in the air sucked from the nozzle hole (11) formed on the trapping nozzle (1) adheres to the surface of the carrier (2) The holes (11) are configured according to consistent random numbers, so that the density of the nozzle holes (11) per unit area is consistent.

Description

technical field [0001] The present invention relates to the use of capturing and cultivating microorganisms such as bacteria and fungi floating in the air (hereinafter referred to as "airborne bacteria"), and counting the amount of bacteria through ATP measurement to determine the biological clean room, aseptic A method of arranging nozzle holes of a trapping nozzle of an airborne microbe trapping device for environments such as food and aseptically filled beverage manufacturing equipment, and an airborne microbe trapping device. Background technique [0002] In the past, in order to measure the environment of manufacturing equipment such as biological clean room, aseptic food, aseptic filling beverage, etc., airborne planktonic bacteria were captured, cultivated, measured by ATP, and the amount of bacteria was counted. Therefore, airborne planktonic bacteria capture was used device (for example, see Patent Document 1). [0003] However, in the airborne bacteria trap descri...

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Problems solved by technology

[0021] image 3 In the case where the depth of the depression 21 is constant, the number of nozzle holes 11 passing therethrough is more than 4, and in the case of 8 or 12, the drying progresses, and the depression 21 becomes deeper.

[0022] As the depression 21 occurs, the depth grows with the elapse of the capture time. If the slight distance between the surface of the carrier 2 and the nozzle hole 11 changes and the distance becomes larger, the airborne bacteria that collide due to inertia will not contact the carrier 2. Collision, passing through the surface of the carrier 2 together with air, the case where the capture efficiency of airborne bacteria is lowered

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