The selective media

Bacteria

Incubation

Temperature

Incubation Period

Incubation Condition

MRS agar

Lactobacilli

37˚C

7 days

Anaerobic

Beerns agar

Bifidobacterium

37˚C

7 days

Anaerobic

Azide blood agar

Streptococci

45˚C

3 days

Aerobic

MacConkey agar

Coliform

37˚C

1 day

Aerobic