Tryptose Blood Agar Base (Dehydrated)

Cultivate and isolate fastidious microorganisms and determine their hemolytic reactions using Thermo Scientific™ Oxoid™ Tryptose Blood Agar Base (Dehydrated) with supplementation of blood. This highly nutritious medium is specially developed by Casman ^1,2 for the preparation of a blood agar which will support the growth of many fastidious organisms.

The original formulation included 0.3g dextrose per litre which interfered with the hemolytic reactions. It is now used without dextrose as a standard medium³.

Tryptose Blood Agar Base with added blood gives good hemolytic reactions and without blood, it will sustain good to excellent growth of many demanding organisms. However, to improve the growth of certain organisms e.g. Neisseria meningitidis and Streptococcus pneumoniae, the addition of 1g of yeast extract (LP0021) to one liter of Tryptose Blood Agar Base is recommended.

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