Merck Millipore’s Samplers and Swab Test Kits simplify routine microbiological analysis of liquids and surfaces for bioburden levels of bacteria, yeast, or mould.
This technique eliminates the cumbersome and expensive hardware and materials associated with traditional testing techniques.
A sampler consists of two parts:
When the Sampler is immersed in a liquid, the absorbent pad rapidly absorbs 1 mL into the filter membrane.
Bacteria, yeast, or mould larger than the rated pore size are retained on the filter surface. The liquid hydrates the agar medium which provides nutrients to the organisms on the filter. These organisms will grow into defined colonies, which can be examined and counted.
Surface Monitoring using Swab Test Kits
Swab test kits combine a Sampler with a Swab. A swab consists of two parts:
The swab enables you to monitor surface cleanliness, test machine surfaces, and reach difficult areas where bacteria, yeast, or mould can grow.
Sample: Obtain a sample. Samplers are filled to a top line. Swabs are wiped across a surface.
Incubate: Place in an incubator oven or incubate at room temperature.
Count: Identify colonies of bacteria, yeast, and/or mould that are growing in your sample.
Results are available in as little as 22 – 72 hours using an incubator or in seven days at room temperature depending on the test. Recoveries of microorganism levels are equivalent to pour plates, streak plates, and open funnel filtration in some cases.