does salmonella ferment lactose ?
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Anna M. Burns
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Answer ( 1 )
Yes, Salmonella bacteria typically do not ferment lactose. This is one of the important characteristics used in the laboratory to differentiate Salmonella from other bacteria, such as Escherichia coli, which does ferment lactose. Instead, Salmonella bacteria produce hydrogen sulfide gas and do not produce acid from lactose fermentation, which helps microbiologists identify them using specific biochemical tests.