If gas is produced as a result of glucose or lactose fermentation, then fissures will appear in the agar or the agar will be lifted off the bottom of the tube. If an organism cannot use lactose as a ...

Glucose Salts Agar (GSA): is a simple, defined medium. Only organisms that can make all their cellular components from glucose and inorganic salts are able to grow on this medium. Tryptic Soy Agar ...