Crack-out-type leakage-proof height-increase visible easy-to-press surface sampling culture dish

Abstract

The invention discloses a crack-out-type leakage-proof height-increase visible easy-to-press surface sampling culture dish. The culture dish comprises a dish bottom and a dish cover, and when the culture dish is under stress, transverse crack openings and longitudinal crack openings in first dish bottom side walls can crack, so that movable dish bottom side wall bodies are detached, the first dishbottom side walls are lower than the plane of a solid culture medium, and therefore the operation of surface microorganism sampling is more convenient. In addition, second dish bottom side walls canprevent the culture medium from spilling out of the dish bottom, pad platforms can prevent the agar culture medium from contaminating dish cover side walls, minute bacterial colonies can be more conveniently observed through an observation window, and the movable dish bottom side wall bodies can be moved more conveniently through the pad platforms.

Description

technical field [0001] The invention relates to an experimental equipment, in particular to a split-type leak-proof and heightened visible and easy-to-press surface sampling culture 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 surf...

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 colony of the target culture grown on the medium in the petri dish is small, it is necessary to enlarge the colony with a microscope to observe the accurate shape of the colony, and the petri dish needs to be opened during the magnification and observation of the colony, which may cause pollution or spillage of harmful cultures

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