Mesophilic are organisms developed in the medium temperature (20-40 ° C):

Depending on the requirement for oxygen, organisms are divided into aerobic and anaerobic ones.

Anaerobic microorganisms live without oxygen. They can exist in such products which are packaged tightly or in the absence of air. Salmonella and botulinum inoculum (Clostridium Botulinum) are examples of anaerobic organisms:

In case of oxygen existence, strict anaerobic organisms are destroyed, but facultative anaerobic organisms are not destroyed, do not need oxygen for survival.

Aerobic micro-organisms can not survive without oxygen. Staphylococcus Aureus is a vivid example.

The aggregate of all available types of bacteria can be viewed as MAFAM’s quantity in food. MAFAM’s quantity available in final consumption products can exceed the Maximum allowed qauntity defined by legislation both as in the result of poor production technology in factories and as in the result of rules violation of food preservation in the retail sector.