Mesophilic

Mesophilic is a term that describes organisms, particularly bacteria, that thrive under certain temperature conditions. Unlike psychrophilic organisms, which prefer low temperatures, and thermophilic organisms, which require high temperatures, mesophilic organisms thrive at temperatures between 25 and 45°C.

Mesophilic bacteria can be found almost everywhere, including soil, water, plant and animal matter, and inside living organisms. Some of them may be beneficial to humans, for example, mesophilic bacteria are used in the production of foods such as yoghurt, cheese and sausage.

Mesophilic bacteria can also cause various diseases such as urinary tract infections, food poisoning and others. Therefore, it is important to control the levels of mesophilic bacteria in foods and other environments where they can cause disease.

It is important to note that mesophilic organisms can be sensitive to changes in their environment. For example, changes in temperature or pH can affect their growth and development. Therefore, when producing food and other products involving mesophilic organisms, it is necessary to strictly control their growing conditions.

In conclusion, a mesophilic organism is an organism that thrives under a certain temperature and environment. Mesophilic bacteria are widespread and can be both beneficial and dangerous to humans. Therefore, controlling the level of mesophilic bacteria is important to maintain health and safety in various fields, including food processing, medicine and the environment.



This term is used to describe organisms, especially bacteria, that grow and develop best at temperatures of 25-45°C. For comparison: Psychophilic, Thermophilic.

Mesophilic bacteria develop optimally at moderate temperatures. They prefer a temperature range of 25 to 40°C, although some can grow in the range of 15 to 50°C. Mesophiles include many bacteria involved in the processes of fermentation and decay. For example, lactic acid bacteria used to make yogurt and cheese.

Compared to psychrophiles, which grow at low temperatures, and thermophiles, which prefer high temperatures, mesophiles occupy an intermediate position. Their optimal temperature regime is close to the normal temperature of the human body.



Mesophilic: How to Identify?

Mesophilic bacteria are those whose best growth conditions are created at environmental temperatures of about 28–36 degrees Celsius, but can develop at slightly higher or lower temperatures. In scientific circles, this term was established after the first mesophilic microorganisms were described, for which the optimal conditions were temperatures of about 34 degrees Celsius. But still, the most significant temperature values ​​are considered to be temperatures from 28 to 40 degrees. Mesophilic species of bacteria include many causative agents of various infectious diseases in humans and animals.

Other types of bacteria according to so-called thermophilicity are divided into the following groups:

- psychrotrophs - extreme organisms that create their best conditions when cooled;

- mesophiles - the best conditions for development are at temperatures from 15 to 37 degrees Celsius;