Table 2. Co-utilization characteristics of the mutants in a mixture of glucose and xylose.

Strains	Sugar ratioa	q(Glc+Xyl)(g/g CDW/h)	qGlc(g/g CDW/h)	qXyl(g/g CDW/h)	qGlc/qXyl
W3110	Glc:Xyl = 1:1	N/A	1.05	0.56	1.88
W3110I	Glc:Xyl = 1:1	1.12	0.24	0.88	0.27
W3110H	Glc:Xyl = 1:1	0.53	0.13	0.40	0.33
W3110C	Glc:Xyl = 1:1	1.12	0.72	0.40	1.80
W3110G	Glc:Xyl = 1:1	0.75	0.37	0.38	0.97

^aThe ratio indicated the initial mass concentration ratio of glucose (Glc) to xylose (Xyl) in the medium.