Did you know that agar is used in diagnostic tests?

Did you know that agar is used in diagnostic tests?

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Thanks to agar and peptones, nowadays, it is possible to diagnose a large number of diseases. These are, for example, respiratory, digestive tract or urinary diseases. Some of them have effective treatments and others are of concern to the WHO because of their resistance to antibiotics. Therefore, rapid diagnosis using agar is essential. 

Practically everyone has been diagnosed using agar. In the case of a patient going to a medical center with symptoms of a disease caused by bacteria, a sample shall be taken and inoculated into a suitable medium to encourage the multiplication of the microorganisms. What is the purpose of this process? To see if the disease-causing bacteria is present in the sample.


This medium is solid or liquid agar, enriched with peptones or other different substances (sugars, hydrates…) that promote the growth of the bacteria to be diagnosed. In this way, within a few hours, the medical center’s laboratory will be able to know whether the disease is related to a bacterial infection, and shall prescribe the appropriate treatment for each specific case. 

But the uses of agar do not end here. Thanks to the agar culture media, it is possible to carry out tests with different antibiotics and thus analyze their effectiveness to fight against specific diseases. In this way, by the time the treatment reaches the patient, it is possible to known its effectiveness and which is the most suitable for each specific case. 

At Agarmex we have a wide range of bacteriological agar with the highest quality. 

Category: Bacto Agar