Table 1.

Key metabolites detected in the growth medium of H. influenzae strain RD.

Metabolite		Initial conc (mM)	Aerobic (mM)	Microaerophilic (mM)	Anaerobic (mM)
Substrates	Glucose	10	8.326	4.228	4.082
	Pyruvate	0.87	0.031	0.040	0.025
	Inosine	6.5	0.866	2.444	2.689
Products	Formate	n.d.+	1.86	4.05	23.36
	Acetate	n.d.+	11.61	6.43	4.28
	Hypoxanthine	n.d.+	3.53	1.75	0.701
	Glycerol	n.d.+	0.856	0.583	0.185
	Succinate	n.d.+	0.011	0.034	0.641
	Lactate	n.d.+	0.003	0.036	0.013

Samples were taken in late exponential phase. A list of minor metabolites detected is available in Table S5. ⁺not detected.