TABLE 1.

Total fumarase activity of strain EJ1535 in different media in batch culture

Mediuma	Fumarase activityb (U/mg)	Generation timec (min)
LB + glucose	0.02	21
LB + pyruvate	0.02	23
LB	0.03	23
Glucose + Casamino Acids	0.03	40
Glucose	0.03	47
Xylose	0.03	71
Glycerol	0.03	84
Acetate	—	NG
Succinate	—	NG
Fumarate	—	NG

^aCells were grown aerobically in a minimal basal medium (pH 7.0) with the indicated carbon compounds added (40 mM). 

^bUnits are expressed as micromoles of fumarate formed per minute at 25°C and pH 7.3. 

^cNG, no growth.