Thermo Scientific™

Middlebrook 7H11 Agar/Mitchison 7H11 Selective Biplate

Catalog number: R02112
Thermo Scientific™

Middlebrook 7H11 Agar/Mitchison 7H11 Selective Biplate

Catalog number: R02112

Isolate and cultivate Mycobacterium species from specimens that contain mixed flora with Thermo Scientific™ Remel™ Middlebrook 7H11 Agar/Mitchison 7H11 Selective Biplates. Middlebrook 7H10 Agar is a solid medium that allows faster and luxurious growth of Mycobacteria1 and protects the organisms against toxic agents2. The Middlebrook 7H11 Agar, developed by Cohn et al., contains casein hydrolysate that stimulates growth of drug-resistant strains of M. tuberculosis. Mitchison et al. modified this formulation by adding antibiotics as selective agents with the 7H11 base3 to selectively isolate Mycobacteria.

 
Catalog Number
R02112
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Each
Price (USD)
Full specifications
DescriptionMiddlebrook 7H11 Agar//Mitchison 7H11 Selective
FormatBiplate
Product TypeAgar
Quantity10/Pk.
Unit SizeEach
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Catalog NumberSpecificationsUnit SizePrice (USD)
R02112Full specifications
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DescriptionMiddlebrook 7H11 Agar//Mitchison 7H11 Selective
FormatBiplate
Product TypeAgar
Quantity10/Pk.
Unit SizeEach
Showing 1 of 1

Produce more screening details of pathogenic organisms while reducing storage capacity issues in the incubator with a bi-plate that includes widely used microbiological medium for the detection of Mycobacterium species.

  • Ready to use: Convenience of prepared media.
  • Selective: Polymyxin B, carbenicillin, amphotericin B and trimethoprim inhibit growth of contaminating Enterobacteriaceae, yeast and Proteus. Malachite-green dye partially inhibits bacteria other than mycobacteria.
  • Space-saving: Biplate format

Middlebrook 7H11 Agar/Mitchison 7H11 Selective Biplates contain inorganic salts essential for growth of mycobacteria. Casein hydrolysate stimulates growth of drug resistant strains of Mycobacterium tuberculosis4. Glycerol is the source of carbon and energy. Sodium citrate is converted to citric acid which holds inorganic cations in solution.

OADC Enrichment is a supplement which contains following additives: sodium chloride to maintain osmotic equilibrium, dextrose that serves as an energy source, catalase to destroy toxic peroxides that may be present in the medium; oleic acid which is required in the metabolism of mycobacteria; and albumin to protect tubercle bacilli against toxic agents. It also contains selective agents malachite-green dye, polymyxin B, carbenicillin, amphotericin B and trimethoprim. Polymyxin B and carbenicillin are selective agents active against most Enterobacteriaceae. Amphotericin B and trimethoprim are active against yeast and Proteus spp., respectively.

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

  1. Middlebrook, G. and M.L. Cohn. 1958. Am. J. Public Health. 48:844-853.
  2. Dubos, R.J. and G. Middlebrook. 1947. Am. Rev. Tuberc. 56:334-345.
  3. Mitchison, D.A., B.W. Allen, and R.A. Lambert. 1973. J. Clin. Pathol. 26:250-252.
  4. MacFaddin, J.F. 1985. Media for Isolation-Cultivation-Identification-Maintenance of Medical Bacteria. Vol. 1. Williams & Wilkins, Baltimore, MD.

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