TABLE 2.

Fermentation products from glucose^a

Strain	Relevant mutations	Concn of fermentation products (mM)
		Succinate	Lactate	Formate	Acetate	Ethanol
W3110	Wild type	9.36 ± 1.00b	30.69 ± 2.49	15.26 ± 0.34	18.42 ± 0.32	14.84 ± 1.77
SZ32	ΔpflB::FRT	13.23 ± 1.30	49.23 ± 1.26	<0.5	<0.5	<1.0
SZ37	ΔfrdBC	<0.5	37.18 ± 9.05	12.95 ± 3.38	14.80 ± 1.33	13.42 ± 2.08
SZ40	ΔpflB::FRT ΔfrdBC	<0.5	59.07 ± 0.69	<0.5	<0.5	<1.0

^aFermentation tests were conducted in 18-ml screw-cap culture tubes containing M9 medium supplemented with 1% glucose. Cultures were incubated for 48 h at 37°C.

^bMean ± standard deviation.