Semi-solid agar

Semi-solid agar

Semi-solid agar is a classical identification medium for observing bacterial motility. Its ingredients are simple. Usually, agar with low concentration (about 0.3%-0.5%) is added to the broth base (such as peptone water) to make it into an ointment-like semi-solid state. This concentration can not only form a network structure to prevent bacteria from spreading freely, but also allow bacteria with flagella to swim actively in it through flagella rotation. Puncture method is used during inoculation. After culture, the dynamic strains will diffuse and grow from the puncture line to the surrounding, making the whole culture medium turbid. The unpowered strain only grows along the puncture line, and the surrounding culture medium remains clear. This test is one of the important indexes to distinguish the genus and species of bacteria. It is easy to operate and the results are intuitive

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2. For your safety and health, please wear a lab coat and disposable gloves and masks when operating.

3. The experimental can be affected by a variety of factors, and the relevant treatment is limited to the product itself, and does not involve other compensation.