Coloring sample of MC-Media Pad Aerobic Count



Aerobic count

MC-Media Pad ACplus Coloring sample 

Color development Red
Shape General bacteria form colonies in a circular shape.

Aerobic count

MC-Media Pad ACplus Coloring sample 2 

Color development Red to pink
Shape If the number of colonies is 106 or more, the entire medium tends to turn dark red.

Aerobic count

 

MC-Media Pad ACplus Coloring sample: Bacillus
Color development Red to pink
Bacterial species Highly motile bacteria such as Bacillus
Shape Colonies may spread.

Aerobic count

 

MC-Media Pad ACplusColoring sample: Example of food sample parsley
Color development Red to pink
Food specimen Parsley
Shape Food-derived pigments remain on the medium surface, but count only red coloration. Color may remain not only in parsley but also in dark pigmented specimens. If the color is dark and difficult to judge, dilute it. If the number of bacteria is small when the dilution is 100 times, adjust the dilution ratio appropriately, such as 50 times.

Aerobic count

 

MC-Media Pad ACplus Coloring sample: Food sample Hijiki
Color development Red to pink
Food specimen Hijiki（Japanese food）
Shape There is food residue, but the color is different, so colony counting is possible. In addition, if there is red food residue, it can be counted because the color and shape derived from microorganisms are different. The part surrounded by red is the colony.

Aerobic count

 

MC-Media Pad ACplus Coloring sample: Food sample Cream cheese
Color development Red to pink
Food specimen Cream cheese
Shape Radial colonies are more likely to be mold. You can see that the hyphae are spreading. Depending on the type of mold, colors such as black and blue may be mixed in the red colony. This is because the mold forms spores, which causes the pigments to overlap in color.

Aerobic count

 

MC-Media Pad ACplus Coloring sample: Food sample pineapple
Color development Red to pink
Food specimen Pineapple
Shape This is an example of both small colonies and large spread colonies. Largely spread colonies are also counted as one. Colonies in the spread colonies are also counted.

Aerobic count

 

MC Media Pad ACplus Coloring sample: Food sample Raw walnut
Color development Red to pink
Food specimen Raw walnuts
Shape There are colonies that spread widely and colonies that spread in a flowing manner, but since there is a core near the center of color development, it is counted as one colony.

Aerobic count

 

MC-Media Pad ACplus Coloring sample: Gram-positive bacteria
Color development Red to pink
Bacterial species Gram-positive bacteria

Aerobic count

 

MC-Media Pad ACplus Coloring sample: Gram-negative bacteria
Color development Red to pink
Bacterial species Gram-negative bacteria