Biochemical test of Citrobacter freundii

Biology Educational Videos

Last Updated on February 4, 2021 by Sagar Aryal

Biochemical test of Citrobacter freundii

­Basic CharacteristicsProperties (Citrobacter freundii)
CapsuleNegative (-ve)
CatalasePositive (+ve)
CitratePositive (+ve)
FlagellaPositive (+ve)
Gas from glucosePositive (+ve)
Gelatin HydrolysisNegative (-ve)
Gram StainingNegative (-ve)
Growth in KCNPositive (+ve)
H2SPositive (+ve)
IndoleNegative (-ve)
MotilityPositive (+ve)
MR (Methyl Red)Positive (+ve)
Nitrate ReductionPositive (+ve)
OF (Oxidative-Fermentative)Facultative Anaerobes
OxidaseNegative (-ve)
PigmentNegative (-ve)
SporeNegative (-ve)
VP (Voges Proskauer)Negative (-ve)

Fermentation of

AdonitolNegative (-ve)
ArabinosePositive (+ve)
ArabitolNegative (-ve)
CellobiosePositive (+ve)
DNaseNegative (-ve)
DulcitolNegative (-ve)
GlutamatePositive (+ve)
GlycerolPositive (+ve)
GlycogenPositive (+ve)
InositolNegative (-ve)
LactosePositive (+ve)
LactulosePositive (+ve)
MalonateNegative (-ve)
MaltitoleNegative (-ve)
MaltosePositive (+ve)
MannitolPositive (+ve)
MannosePositive (+ve)
MelibiosePositive (+ve)
MucatePositive (+ve)
MyoInositolPositive (+ve)
PalatinoseNegative (-ve)
RhamnosePositive (+ve)
SalicinNegative (-ve)
SorbitolPositive (+ve)
SorbosePositive (+ve)
SucrosePositive (+ve)
TartrateNegative (-ve)
TrehalosePositive (+ve)
XylosePositive (+ve)

Enzymatic Reactions

Acetate UtilizationPositive (+ve)
Aesculine HydrolysisNegative (-ve)
Arginine DehydrolaseVariable
Esculin HydrolysisNegative (-ve)
LipaseNegative (-ve)
Lysine decarboxylaseNegative (-ve)
ONPG (β-galactosidase)Positive (+ve)
Ornithine decarboxylaseNegative (-ve)
Phenylalanine deaminaseNegative (-ve)
Tryptophan deaminaseVariable
Tyrosine hydrolysisPositive (+ve)
Biochemical test of Citrobacter freundii
Source: Microbiology In Pictures

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.