Cracking-type leakage-proof handheld fan-shaped counting surface sampling culture dish

Abstract

The invention discloses a cracking-type leakage-proof handheld fan-shaped counting surface sampling culture dish. The culture dish comprises a dish bottom and a dish cover, wherein when the culture dish is under stress, transverse crack openings and longitudinal crack openings arranged on first dish bottom side walls can be cracked, so that movable dish bottom side walls are separated, resulting in that a height of the first dish bottom side walls is lower than a plane of a solid culture medium, and the surface microorganism sampling operation is simpler and more convenient. In addition, second dish bottom side walls can prevent a culture medium from overflowing from the dish bottom, by virtue of the cooperation of first tongs and second tongs, the dish bottom and the dish cover can be more convenient to open or lock, and radioactive rays can simplify the counting process of the colony.

Description

technical field [0001] The invention relates to an experimental equipment, in particular to a split-type leak-proof hand-held 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 of object...

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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