Thermo Scientific™ Tyrosine Agar

Description

• Differentiate aerobic actinomycetes on the basis of tyrosine hydrolysis using Thermo Scientific™ Remel™ Tyrosine Agar
• Mishra et al
• developed a taxonomic scheme for aerobic actinomycetes on the basis of biochemical characteristics 1
• A simplified scheme for identification of most commonly isolated actinomycetes was developed by McGinnis et al
• and includes tyrosine, xanthine, hypoxanthine, and casein tests 2
• Upon extended incubation, Nocardia brasiliensis and Streptomyces spp
• exhibit proteolytic activity on tyrosine agar
• The aerobic acinomycetes are a heterogeneous group of genera and include the species of Nocardia and Streptomycces 3
• As a group, the organisms are gram-positive, catalase positive, and may be presumptively identified by staining procedures, microscopic morphology, and substrate degradation
• Ready to use – Convenience of a prepared media Easy to interpret – Clearing of tyrosine due to enzymatic hydrolysis around and/or under growth indicates a positive test
• Growth without clearing of medium indicates a negative test
• This medium contains beef extract and peptone that provide carbohydrates, vitamins nitrogen compounds and salts essential for the growth of aerobic actinomycetes
• Peptone also provides nutrients in the form of amino acids and peptides
• This medium detects the presence of the hydrolytic enzyme that degrades tyrosine resulting in clearing of the media surrounding and beneath the areas of growth
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• Please inquire
• Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.