TABLE 1.

Effects of carbon source in aerobic culture of E. coli NZN111 on glucose consumption and product formation in subsequent anaerobic fermentation in flasks

Carbon source in aerobic culture	Anaerobic fermentationa
	Cell concn (g [DCW]/liter)b		Consumed glucose (g/liter)	Amt of product (g/liter)				Yield of succinic acid (mol/mol)
	Initial	Final		Succinic acid	Acetic acid	Pyruvic acid	Ethanol
Glucose	3.55	2.93 ± 0.06	3.30 ± 0.05	0.27 ± 0.00	0.079 ± 0.00	0.42 ± 0.04	NDc	0.12 ± 0.00
Acetate	3.74	3.69 ± 0.05	13.39 ± 0.04	11.26 ± 0.24	0.59 ± 0.02	0.34 ± 0.01	ND	1.28 ± 0.03

^aData are means ± standard deviations.

^bIn the anaerobic culture.

^cND, not detected.