Grp

Nos of Colony

Edge

Color

Shape

Size

Surface

Organism Detected

Positive control

46 ± 0.01

Nill

Cream

Irregular/Round

Large

Smooth

Staphylococcus aureus, Enteroobacter aerogenes

Fermented groupa

32 ± 0.2

Smooth

Pink

Irregular/Round

Large

Smooth

Escherichia coli, Proteus vulgaris

Bacillus cereus

Otili group

127 ± 4

Smooth

Cream

Cream

Large

Smooth

Escherichia coli

Citrobacter freundii

Fermented groupb

25 ± 0.01

Smooth

Cream

Irregular/Round

Small

Smooth

Bacillus cereus, Escherichia coli

Proteus vulgaris