Remel™ TAT Broth Base

Detect gram-negative microorganisms and perform sterility testing of cosmetics, topical drugs, and highly viscous substances such as salves and ointments using Thermo Scientific™ Remel™ TAT Broth Base (Dehydrated). TAT Broth is also referred to as Fluid Casein Digest-Soy Lecithin Polysorbate 20 Medium. In 1976, Brummer reported lecithin and polysorbate 20 effectively neutralized chemical disinfectant residues which inhibited the growth of viable microorganisms¹. It is recommended by the United States Pharmacopeia for use in microbiological examination of non-sterile products².

TAT Broth is prepared according to the formulation recommended by the Food and Drug Administration³. TAT Broth is a non-inhibitory medium, used mainly for isolating contaminating bacteria in cosmetics, salves and creams⁴.

• Recommended by the United States Pharmacopeia for use in the microbiological examination of non-sterile products².
• Lecithin and polysorbate 20 effectively neutralize chemical disinfectant residues which inhibit the growth of viable microorganisms¹.

This medium contains casein peptone that provides a source of nitrogen, amino acids, and peptides necessary for bacterial growth. Lecithin and polysorbate 20 present in the medium serve to neutralize preservatives in topical drugs and cosmetics.