Biochemical Test of Escherichia coli (E. coli) 4.25/5 (4)

Biochemical Test of Escherichia coli (E. coli)


Biochemical Test of Escherichia coli (E. coli)

Basic Characteristics Properties (E. coli)
Capsule Capsulated
Catalase Positive (+ve)
Citrate Negative (-ve)
Coagulase Negative (-ve)
Flagella Flagellated
Gas Positive (+ve)
Gelatin Hydrolysis Negative (-ve)
Gram Staining Negative (-ve)
Growth in KCN Negative (-ve)
H2S Negative (-ve)
Hemolysis Negative (-ve)
Indole Positive (+ve)
Motility Motile
MR (Methyl Red) Positive (+ve)
Nitrate Reduction Positive (+ve)
OF (Oxidative-Fermentative) Fermentative
Oxidase Negative (-ve)
Pigment Negative (-ve)
PYR Negative (-ve)
Shape Rod
Spore Non-Sporing
TSIA (Triple Sugar Iron Agar) Acid/Acid, Gas +ve
Urease Negative (-ve)
VP (Voges Proskauer) Negative (-ve)
Fermentation of
Adonitol Negative (-ve)
Arabinose Positive (+ve)
Arabitol Negative (-ve)
Cellobiose Negative (-ve)
DNase Negative (-ve)
Dulcitol Variable
Erythritol Negative (-ve)
Glucose Positive (+ve)
Glycerol Variable
Lactose Positive (+ve)
Malonate Negative (-ve)
Maltose Positive (+ve)
Mannitol Positive (+ve)
Mannose Positive (+ve)
Melibiose Positive (+ve)
Mucate Positive (+ve)
Myo-Inositol Negative (-ve)
Raffinose Variable
Rhamnose Positive (+ve)
Salicin Variable
Sorbitol Positive (+ve)
Sucrose Variable
Tartrate Positive (+ve)
Trehalose Positive (+ve)
Xylose Positive (+ve)
Enzymatic Reactions
Acetate Utilization Positive (+ve)
Aesculine Hydrolysis Variable
Arginine Dihydrolase Negative (-ve)
Beta Lactamase Positive (+ve)
Esculin Hydrolysis Variable
Lipase Negative (-ve)
Lysine Decarboxylase Positive (+ve)
ONPG (β-galactosidase) Positive (+ve)
Ornithine Decarboxylase Variable
Phenylalanine Deaminase Negative (-ve)

Escherichia coli (E. coli) Gram Stain


Figure: Gram Stain of E. coli. Source: Art.com

Biochemical Test of Escherichia coli (E. coli)

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