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Microbial Limits Test

MICROBIAL ENUMERATION TESTS

Not all pharmaceutical products are required to be sterile. For non-sterile products there is often a limit on the number of microorganisms permitted in the product. Helvic provide testing services to cover this. To determine the bioburden of a material Microbial Enumeration / Microbial Limit Tests are performed as per the harmonised Pharmacopoeia methods.

A microbial enumeration test consists of a Total Aerobic Microbial Count (TAMC) and a Total Yeast and Moulds Count (TYMC).

These tests determine the quantitative enumeration of mesophilic bacteria and fungi that may grow under aerobic conditions. These tests reveal whether a substance or preparation complies with an established specification for microbial quality, in basic terms a determination of its bioburden.

Methods employed include:

  • Plate count methods
  • Membrane filtration
  • Surface-spread method
  • Pour-plate method
  • Most-probable-number (MPN) method

TESTS FOR SPECIFIED ORGANISMS

These are tests to determine the absence or limited occurrence of specified microorganisms that may be detected in a substance or preparation. Helvic performs these tests as per the harmonised Pharmacopoeial methods, using the selective media and organism strains prescribed

Industry

  • Pharmaceuticals
  • Biologics & Biopharmaceuticals
  • Medical Devices
  • Beauty, care and wash

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