Thermo Scientific™ Dermasel Agar Base (Dehydrated)

Description

• Isolate and identify dermatophyte fungi from hair, nails or skin scrapings using Thermo Scientific™ Oxoid™ Dermasel Agar Base (Dehydrated) when used with Dermasel Selective Supplement (SR0075)
• The near neutral pH of the medium is better for the growth of fungi
• The often-recommended acidic pH used to supress bacterial contaminants is replaced by addition of selective agents
• Chloramphenicol and cycloheximide render the medium selective for dermatophytes inhibiting many saprophytic fungi, yeasts and bacterial skin flora 1
• Use Dermasel Agar Base for the isolation of dermatophyte fungi from samples such as hair, skin scrapings and nails
• Inhibits the growth of contaminating saprophytic fungi, yeasts and bacterial skin flora 1
• Chloramphenicol and cycloheximide in the medium improve the isolation of dermatophytes, especially when the inoculum is heavily contaminated 2, 3 The chloramphenicol and cycloheximide supplement SR0075 reduces the potential risk to health from these antibiotics
• To include them in the powder mix could allow them to be scattered as dust while weighing the medium
• It also ensures a fixed, accurate dose of antibiotic that has been protected from degradation on storage
• The addition of cycloheximide and an anti-bacterial agent has been reported to improve considerably the isolation of dermatophytes, especially when the inoculum, such as horse hair, was heavily contaminated 3,4
• The presence of staphylococci, which may grow in the absence of the antibiotic has been shown to prevent the in-vitro growth of Trichophyton rubrum 5
• The presence of cycloheximide in the medium inhibits the growth of Trichosporon cutaneum, Candida parasilosis, Candida krusei, Aspergillus, Penicillium, Fusarium and Cephalosporium species which have been associated with diseased nails
• 6,7 Not all products are available for sale in all territories
• Please inquire
• Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.