TABLE 3.

Fermentation of the strains harboring different XR genes under ScGAPDH or KmGAPDH promoter.

Strain	Host strain	Promoter	XR	Xylitol production (g/L)	Xylitol productivity (g/L/h)
YZB001	_	_	_	0.13 ± 0.04	0.01 ± 0.01
YZJXR001	YZB001	P ScGAPDH	ArXR	9.53 ± 0.02	0.40 ± 0.01
YZJXR002	YZB001	P ScGAPDH	AbXR	9.26 ± 0.13	0.39 ± 0.03
YZJXR003	YZB001	P ScGAPDH	AoXR	3.18 ± 0.07	0.13 ± 0.01
YZJXR004	YZB001	P ScGAPDH	BbXR	4.50 ± 0.12	0.19 ± 0.02
YZJXR005	YZB001	P ScGAPDH	CaXR	9.26 ± 0.03	0.39 ± 0.03
YZJXR006	YZB001	P ScGAPDH	CeXR	11.38 ± 0.47	0.47 ± 0.02
YZJXR007	YZB001	P ScGAPDH	CgXR	8.99 ± 0.02	0.37 ± 0.02
YZJXR008	YZB001	P ScGAPDH	CpXR	6.09 ± 0.43	0.25 ± 0.03
YZJXR009	YZB001	P ScGAPDH	CtXR	13.50 ± 0.07	0.56 ± 0.01
YZJXR010	YZB001	P ScGAPDH	CmXR	2.91 ± 0.02	0.12 ± 0.05
YLUA005*	_	_	_	15.20 ± 0.97	0.42 ± 0.02
YZJXR011*	YLUA005	P ScGAPDH	CtXR	21.56 ± 0.17	0.60 ± 0.01
YZJXR012*	YLUA005	P KmGAPDH	CtXR	25.04 ± 0.73	0.70 ± 0.02

*In the fermentation with these strains, 20 g/L glycerol was added in addition to 50 g/L xylose.