The dyes Eosin & Methylene Blue inhibit the growth of Gram ... test an EMB positive colony (dark, metallic color) is used to inoculate a tube of lactose broth to verify acid and gas production. A ...
Tryptic Soy Agar (TSA): is a rich, undefined medium containing products of an enzymatic digest of protein and soy product. Organisms that require vitamins or other growth factors are able to grow on ...