Table 4.

The activity of XR and XDH of C. sorokiniana with different cofactors ^a

	NADPH	NADH	NADP +	NAD +
XRb (U mg−1 protein)	0.021	0.004	-	-
XDHc (U mg−1 protein)	-	-	0.026	ND

^aThe induced algal cells were washed with sterile distilled water and re-suspended in 8 mg DCW per mL in 50 mL minimal medium supplemented with 5 mM KNO₃ and 40 mM D-xylose under light for 24 hours.

^bThe activity of XR was measured at pH 6.0 and 40°C.

^cThe activity of XDH was measured at pH 8.0 and 40°C.

ND, Not detected.