Table 5.

Biogroups of S. putrefaciens

GroupCharacteristic (% positive)a
Growth at 35°Cα-Glucosidase activityChitinase activityPigmentation on l-tryptophanUtilization of urocanic acidAcid produced from:
MaltoseArabinoseSucrose
1+ (100)− (0)− (13)+ (88)+ (100)+ (100)+ (100)+ (100)
2+ (100)− (0)− (0)+ (83)V (67)− (17)+ (83)− (0)
3− (11)V (27)+ (100)− (0)− (0)+ (100)− (0)− (0)
  • a V, variable.