Pressing-out type leak-proof and anti-slip sector counting based surface sampling culture dish

Abstract

The invention discloses a pressing-out type leak-proof and anti-slip sector counting based 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 in a stable embedded structure are arranged at the dish bottom, the embedded structure can be loosened under stress, and a movable dish bottom side wall moves relative to a first dish bottom side wall. Besides, a culture medium can be prevented from overflowing from the dish bottom by the aid of a second dish bottom side wall; when multiple culture dishes are stacked for placement, relative motion of the two adjacent culture dishes can be limited by first bulges and second bulges; by means of radial lines, a counting process of bacterial colonies can be simplified.

Description

technical field [0001] The invention relates to an experimental equipment, in particular to a pressure-out type anti-leakage anti-slip fan-shaped 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 ...

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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