Brain heart infusion broth

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Brain heart infusion broth (or BHI broth) is a highly nutritious general-purpose growth medium for fastidious microorganisms, such as streptococci, pneumococci and meningococci.^[1] It is made by the recuperation of nutrients from boiled cattle hearts and brains. Soluble factors are released into the broth during the boiling procedure. The broth can then be turned into powder for easy distribution.