TABLE 4.

Specific enzyme activities in cell lysates of samples (four replicates) from different steady states of strain S. cerevisiae TMB 3001 in anaerobic, glucose-limited continuous cultures

Feed denomination (g/liter)	Enzyme activity (U/mg of protein) ± SD
	XR	XDH	XK	PGK	ADH
15 xylose + 5 glucose	0.42 ± 0.05	2.74 ± 0.10	1.54 ± 0.07	21.9 ± 1.2	23.1 ± 1.2
10 xylose + 10 glucose	0.52 ± 0.04	3.37 ± 0.09	1.71 ± 0.07	23.1 ± 1.30	28.4 ± 0.75
5 xylose + 15 glucose	0.52 ± 0.05	3.14 ± 0.06	1.61 ± 0.03	15.4 ± 0.16	27.7 ± 0.54
0 xylose + 20 glucose	0.43 ± 0.03	2.75 ± 0.11	1.56 ± 0.07	17.3 ± 1.21	21.2 ± 0.81