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Specialty Chemistry Forums => Other Sciences Question Forum => Topic started by: Extra love on October 27, 2007, 10:09:29 PM

Title: MacConkey’s agar
Post by: Extra love on October 27, 2007, 10:09:29 PM

I have a question.  ???

MacConkey’s agar is said to be both selective and differential. Explain fully.

Can anybody help me?

Title: Re: MacConkey’s agar
Post by: d.mahmoud on November 28, 2007, 06:25:00 PM

hi
macconkey agar is selective and differential
selective this means that it allow the growth of some bacteria and inhibit the growth of others

differential, means that it can distinguish the type of bacteria according to pattern of growth

so macconkey agar is selective for enteric bacteria
and differentiate them according to fermentation of lactose