Extrusion-type anti-skid hand-held grid-counting surface sampling culture dish

Abstract

The invention discloses an extrusion-type anti-skid hand-held grid-counting surface sampling culture dish. The culture dish comprises a dish bottom and a dish cover, wherein a second buckle and a first buckle which are of a stable chimeric structure are arranged on the dish bottom, when under stress, the chimeric structure can loosen to cause relative movement between a mobile dish bottom side wall and a first dish bottom side wall, under cooperation between first hand grabs and second hand grabs, the dish bottom and the dish cover can be unbuckled or buckled more conveniently, when multiple culture dishes are placed in a stacked mode, by means of first bulges and second bulges, relative movement between the two adjacent culture dishes can be limited, and by means of grid lines, a bacterial colony counting process can be simplified.

Description

technical field [0001] The invention relates to an experimental equipment, in particular to an extrusion-type non-slip hand-held square counting surface sampling petri dish. Background technique [0002] Petri dish is one of the most widely used experimental equipment in biology. It is often used for the culture test of microorganisms on the surface of food packaging materials, tableware, etc., and the sampling of microorganisms on the surface of the object is usually wiped with a sterile cotton swab on the surface of the object to be tested, or Use sterile filter paper to stick to the surface of the object to be tested, and then transfer the cotton swab or filter paper to the buffer solution for eluting to achieve the purpose of sampling. However, cotton swabs or filter paper cannot completely release the collected microorganisms, which may easily cause incomplete cultivation of cultivable microorganisms; in addition, the sampling of microorganisms on the surface of objects...

AI Technical Summary

Problems solved by technology

However, cotton swabs or filter paper cannot completely release the collected microorganisms, which may easily cause incomplete cultivation of cultivable microorganisms; in addition, the sampling of microorganisms on the surface of objects requires aseptic operation, while cotton swabs or filter paper are used in the collection and elution of microorganisms. During the process, it is easy to be polluted by environmental microorganisms, and it is difficult to meet the requirements of aseptic operation; these shortcomings will cause the deviation of the microbial test results on the surface of the object

In addition, the operation process of the above method is cumbersome and inefficient, which easily causes waste of human resources

When the number of colonies of the target culture grown in the culture medium in the petri dish is huge, the counting process of the colonies is more cumbersome

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