If the coliforms are Escherichia coli there will be what looks like a metallic green sheen on the colonies.
metallic green in colour
yes it can be grow in EMB agar.
Colorless, it doesnt ferment lactose.
Gram + bacteria do NOT grow on EMB agar, EMB agar inhibits their growth, and is selective for Gram -
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EMB agar or Eosin methylene blue agar is to see which gram negative is lactose fermenters by colonies appearing a purple, black color. It also inhibits the growth of gram positive bacteria.
Escherichia coli-Salmonella-Shigella-Enterobacter
yes it can be grow in EMB agar.
function of eosin methylene blue agar (EMB)
Emb agar
Colorless, it doesnt ferment lactose.
Gram + bacteria do NOT grow on EMB agar, EMB agar inhibits their growth, and is selective for Gram -
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EMB agar or Eosin methylene blue agar is to see which gram negative is lactose fermenters by colonies appearing a purple, black color. It also inhibits the growth of gram positive bacteria.
EMB Agar
The conclusion drawn if no growth appeared on MacConkey agar and EMB agar after inoculation of the media and an incubation period could be the bacteria used was possibly a Gram positive non-enteric sample.
The conclusion drawn if no growth appeared on MacConkey agar and EMB agar after inoculation of the media and an incubation period could be the bacteria used was possibly a Gram positive non-enteric sample.
methylene blue