Gram straining

TSI

Butt Slant Gas

H₂S

Test

Citrate

Test

MIU

Test

MR

Test

VP

Test

Catalase

Test

Oxidase

Test

Presumptive organism

Violet, cocci

B- Red

S- Red

G: (-)

-

-

M- (-)

I- (-)

U- (-)

-

+

-

-

Enterococcus

spp

Violet, Diplococci

B- Yellow

S- Yellow

G- (-)

-

+

M- (-)

I- (-)

U- (-)

-

+

-

Enterococcus spp