There are two types of bacteria that start to multiply when they find suitable conditions on foodstuffs and produce toxins and these toxins are determined to enter into the body and cause poisoning. One of them is clostridium botulinum and the other is staphylococcus aureus. Staphylococcus aureus causes meningitis, inflammatory wounds and joint rheumatism in humans. Some of them cause intestinal disorders.

The presence of staphylococcus aureus bacteria in foodstuffs and food establishments is the greatest indicator of lack of hygiene.

Among the staphylococcus bacteria species, coagulase production method is applied to detect staphylococcus aureus bacteria, which is the most disease-causing species in humans. The most commonly used coagulase test in microbiology laboratories is the slide test. These tests provide quick results, but Since this factor is not present in some strains of staphylococcus aureus, negative results are obtained with slide test. In some cases, the result of clustering is not correct. Therefore, if negative results are obtained in the slide test, the tube test should be used for confirmation. However, since it is simple in terms of laboratories, coagulase tests for the detection of staphylococcus aureus are used because of their rapid and high accuracy.

Staphylococcus aureus count (coagulase positive staphylococ) studies are carried out by rapid test methods among microbiological analyzes in advanced laboratories. These studies are based on standards published by national and international organizations. Some of these standards are:

• Microbiology of food and animal feeds - Coagulase - Horizontal method for counting of positive staphylococci (staphylococcus aureus and other species) - Part 6582: using Baird-Parker agar medium
• TS 6582-2 EN ISO 6888-2 ... Section 2: Using rabbit fibrinogen agar medium
• TS 6582-3 EN ISO 6888-3 ... Section 3: EMS technique for detection and low counts