Microbial production host selection for converting second-generation feedstocks into bioproducts

Table 2 Performance of the six microorganisms on three carbon sources in controlled fermentations.

	Carbon source	Growth rate (1/h)	Carbon source uptake rate¹ (g/g/h)	Biomass yield²(g/g)
E. coli	Glucose	0.49	1.56	0.28
	Xylose	0.50	1.71	0.20
	Glycerol	0.40	0.88	0.36
C. glutamicum	Glucose	0.33	0.79	0.31
	Xylose	-	-	-
	Glycerol	0.18	1.09	0.12
S. cerevisiae	Glucose	0.20	2.52	0.09
	Xylose	-	-	-
	Glycerol	0.01	0.01	0.6
P. stipitis	Glucose	0.10	0.34	0.14
	Xylose	0.40	2.16	0.10
	Glycerol	0.11	0.46	0.14
T. reesei	Glucose	0.02	0.08	0.22
	Xylose	0.01	0.04	0.18
	Glycerol	-	-	-
A. niger	Glucose	0.03	0.20	0.34
	Xylose	0.07	0.13	0.41
	Glycerol	0.03	0.11	0.24

¹ The rate was determined for the biomass dry weight at mid-log phase.
² Biomass dry-weight value was used at the time point when the carbon source was depleted.

ISSN: 1475-2859