Dermatophyte Test Medium (DTM)

Dermatophytes are fungi that possess keratinolytic properties that enable them to invade skin, nails and hair². The infections caused by these organisms are commonly referred to as ringworm and are classified by the Latin word tinea followed by the area of the body infected³. The dermatophyte test medium (DTM) is recommended for selective isolation of pathogenic fungi from cutaneous sources.

• Ready to Use: Convenience of prepared agar media.
• Selective: Cyclohexamide, chloramphenicol, and gentamycin inhibit most saprophytic fungi and many gram-positive and gram-negative bacteria, including some Pseudomonas
• Ease of identification: Color change of phenol red indicator from yellow to red

DTM is primarily used as a screening test for detection of dermatophytes. This medium contains soy peptone that supplies the nitrogen and carbon necessary for the growth of microorganisms. Dextrose acts as an energy source. Phenol red is a pH indicator which detects alkaline metabolites produced by dermatophytes, resulting in a color change from yellow to red. The three antibiotics cyclohexamide, chloramphenicol, and gentamycin are selective agents that inhibit growth of certain microorganisms.

Not all products are available for sale in all territories. Please inquire.

Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.