Character

Result

Character

Result

Gram stain

Positive

Gelatin liquefaction

−

Acid fast

Negative

Hydrolysis of esculin

−

Shape

Bacilli

Hydrolysis of Tween 80

−

Color

Creamy

Egg yolk lecithin

−

Colonies

Regular

Hydrolysis of starch

+

Colony edge

Entire

Hemolysis

−

Endospore

+

Utilization of casein

+

Cyst, capsule

−

Resistance to Ampicillin

−