BioTek

Products >> Consumables >> Microbiology >> Media/Agar/Buffers >> Culture Media- Dehydrated >> MacConkey Agar

Need More Information about MacConkey Agar?

Question, comment or just feedback we want to know. Maybe you have question on what may compliment this product? We have the answers so ask the questions. We look forward to hearing from you.

Name *

Email *

Enquiry *

Spam Question, what is 2 plus 11 *

Model Number: MCA

MacConkey agar is selective for Gram-negative organisms. Gram-negative enteric bacteria that grow on MacConkey agar are differentiated by their ability to ferment lactose. If the lactose is fermented by the bacteria, the production of the acid drops the pH of the media, which is indicated by the change of neutral red indictor to pink. Strongly lactose fermenting bacteria produce sufficient acid, causing precipitation of the bile salts around the growth, which appears as  a pink halo surrounding individual colonies or areas of confluent growth. Pink halo is not seen around the colonies of weaker lactose fermenting bacteria. Gram-negative bacteria that grow on MacConkey agar but do not ferment lactose appear colourless on the medium and the agar surrounding the bacteria remains relatively transparent.

MCA020- MacConkey Agar 20 g @ $20 +GST

MCA050- MacConkey Agar 50 g @ $35 +GST

MCA100- MacConkey Agar 100 g @ $65 +GST

MCA250- MacConkey Agar 250 g @ $132 +GST

MCA500- MacConkey Agar 500 g @ $199 +GST