Membrane filtration is used to capture microbial contaminants from a wide range of sample matrices. Such so-called filterable materials, including water or water-based materials, are popular because of their ease of use and their capacity to capture bioburden from large sample volumes.
In comparison, standard spread/pour plate methods commonly used for non-filterable samples can test no more than 1 ml and are often time-consuming and labor-intensive.
Testing “Non-Filterable” Materials by Membrane Filtration and RMMs employs case studies to highlight that many materials considered to be non-filterable can be processed using membrane filtration for subsequent analysis by a rapid detection technology: Growth Direct.