Compact Dry X-SA
Compact Dry is a simple and safe procedure for determining and quantifying microorganisms in foodstuffs, cosmetics and other raw materials, including pharmaceuticals. The ready-to-use Compact Dry chromogenic plates are suitable for both in-process and final product controls.
Staphylococcus aureus is a common human microflora, it can be found naturally on the skin, the nose. Because of this, it is commonly used as an index of personal hygiene for food handlers. Therefore, the high population of estafilococos in the food system indicates a lack of hygiene and sanitation. Normally they are harmless, but at high population levels, they can begin to form endotoxins that cause food poisoning by "estafilococos". They can also tolerate low water activity and are opportunistic on foods with high sugar content.
|Matrix:||Raw materials, finished products, environmental samples from the food, cosmetics and pharmaceutical industries, among others.|
|Incubation time and temperature:||Incubate at 35 ± 2 °C for 24 ± 2 hours with AOAC and at 37 ± 1 °C for 24 ± 2 hours with MicroVal, NordVal|
|Presentation:||Packs of 4 units|
Mode of use:
- Remove the cover.
- Deposit 1 ml of the sample in the center of the surface of the Compact Dry plate.
- The sample is automatically and homogeneously dispersed on the film, and transforms the dry film into a gel in a few seconds.
- Replace the cover on the plate. Incubate for the prescribed time.
Weigh the sample
Add the diluent
Homogenize the sample
Removing the plates
Remove the cover
Add 1 Ml of sample
Wait for the sample to be absorbed
Put the plate down
Bring the plate in incubation
Interpretation of results:
Las colonias de Staphylococcus aureus exhibit a light blue color and only these should be counted. Other bacteria, in addition to S. aureus, may grow and form white and/or purplish-red colonies; however, only light blue colonies should be counted.
Storage and shelf life:
Keep at room temperature, from 1 to 30 °C. Shelf life 18 months.