Microbiological Tests - Enumeration of Sulfite Reducing Anaerobic Bacteria

The ISO 15213:2003 standard, developed by the International Standards Organization (ISO), describes a horizontal analysis method for enumerating sulfide-reducing bacteria growing under anaerobic conditions. This analysis method is applicable to food products intended for human and animal nutrition.

Due to the wide variety of food and feed products, the horizontal method described may not be suitable for some products. In this case, different methods are applied to these products.

Essentially, the application area of ​​the standard in question has been determined as follows:

• Products for human consumption and animal nutrition
• Environmental examples in food production and food processing

Sulfite-reducing bacteria growing under anaerobic conditions are bacteria that form countable typical colonies under the conditions specified in this standard.

Before the tests are applied, samples are prepared and dilutions are made. These samples are then plated onto the medium and incubated according to method specifications. After incubation, the plates are read and results are taken over the countable range.

Sulfite-reducing bacteria are an indicator of groundwater and drinking water pollution in general. It can be found in decaying vegetation, marine sediments, soil, and the intestines of humans and other vertebrates. Most sulfide-reducing bacteria are not pathogenic, but some produce potent biological toxins.

In the test, analysis, measurement and evaluation studies carried out in our organization, national and international standards and applicable legal regulations are complied with and reliable and impartial results are obtained. Numerous tests carried out in this context include microbiological tests - sulfide-reducing anaerobic bacteria counting services.