Cracking-type easy-to-mark grid counting surface sampling culture vessel

Abstract

The invention discloses a cracking-type easy-to-mark grid counting surface sampling culture vessel. The culture vessel comprises a vessel bottom and a vessel cover. When the culture vessel bears force, transverse crack openings and longitudinal crack openings which are formed in the first vessel bottom side walls can crack, so that the movable vessel bottom side walls are disengaged, consequently,the first vessel bottom side walls are lower than the plane of a solid culture medium, and thus surface microorganism sampling operation is easier and more convenient, marking work can be more efficient through marking areas, and the counting process of bacterial colonies can be simplified through grid lines.

Description

technical field [0001] The invention relates to an experimental equipment, in particular to a split-type easy-to-mark grid 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 requires ase...

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 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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