MCTA (TSA+Lec+Tw80) + L-Hystidine + S. Thiosulphate

APPLICATION

Tryptic Soy Agar (TSA) is a non selective isolation medium used for the growth of bacteria which do not have specific nutritional requirements and for the preparation of reference strains with the aim of growth promotion tests of culture media. This medium complies with the recommendations of the harmonized method in the United States Pharmacopoeia (USP) and European Pharmacopoeia (EP).

PRINCIPLE AND INTERPRETATION

Tryptone Soy Agar plates are provided for environmental monitoring and in particular for air-monitoring inside environmentally-controlled areas.

The inactivation of residues of disinfectants is critical for the detection of viable and cultivable microorganisms in pharmaceutical production environments. For this purpose, different neutralizer combinations are added to the medium.

Lecithin neutralizes quaternary ammonium compounds, Tween 80 is effective against phenolic compounds and mercurial derivates, Histidine and Glycine inactivate aldehydes, Sodium thiosulfate neutralizes halogen compounds.