Extrusion-type leakproof heightened quantitative easily-marked surface sampling culture dish

Abstract

The invention discloses an extrusion-type leakproof heightened quantitative easily-marked surface sampling culture dish. The extrusion-type leakproof heightened quantitative easily-marked surface sampling culture dish comprises a dish bottom and a dish cover; the dish bottom is provided with a second buckle and a first buckle; a stable inosculating structure is formed by the second buckle and thefirst buckle; when the stable inosculating structure is loaded with force, the second buckle and the first buckle are disconnected, relative movement of a movable dish bottom side wall with a first dish bottom side wall is realized; a second dish bottom side wall is capable of preventing leakage of culture medium from the dish bottom; a pad platform is capable of preventing pollution of dish coverside wall from nutrient agar; a marking zone is capable of increasing the efficiency of marking operation; and scale lines are adopted to indicate filling volume of nutrient agar.

Description

technical field [0001] The invention relates to an experimental equipment, in particular to a pressure-out leakage-proof, increased quantitative and easy-to-mark 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 s...

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

Most of the existing petri dishes are made of glass and need to be marked with an oil-based marker pen. However, the handwriting of the oil-based marker pen needs to be erased with a special organic solvent. Therefore, when multiple petri dishes are used repeatedly, the inconvenience of marking will easily cause to confuse

When the culture dish is poured into the agar medium, the pouring volume of the medium is usually determined by the operator according to experience, so the pouring volume of the agar medium of different personnel may have a large difference, thereby affecting the relevant experimental results

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