Kaitlyn M.

asked • 10/29/20

How is the production of cysteine desulfurase detected in SIM media?

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Priyanga K. answered • 05/21/21

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The SIM medium contains this amino acid.The SIM medium contains the indicator ferrous iron, which combines with hydrogen sulfide to produce a black precipitate. If the culture blackens from the precipitate, then the bacterium is positive for the production of cysteine desulfurase.

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