New insights into Escherichia coli metabolism: carbon scavenging, acetate metabolism and carbon recycling responses during growth on glycerol

Table 1 Specific growth rates (μ) and stoichiometric parameters of strain JM101 grown on single or mixtures of carbon sources

Condition	μ (h⁻¹)	Y_x/s(g/mmolC)	qs (mmolC/g_dcwh)	mmolC of acetateproduced (+) or consumed (−)
Glucose	0.69	0.013	51.8	+28.2
Glycerol	0.49	0.014	34.3	Not detected
Glucose + glycerol	0.72 (0.45)	0.017(0.006)	43.1	+4.1
Glycerol + acetate	0.43	0.011	39.5	−11.0
Glucose + acetate	0.72(0.1)	0.013(0.017)	55.4(6.55)	+6.0

Mean values from at least three independent cultures are presented. Differences between values in these experiments were <10%. The numbers in parentheses indicate data for the specific strain in those stages in which only the remaining carbon source was available.

ISSN: 1475-2859