Engineering Escherichia coli for succinate production from hemicellulose via consolidated bioprocessing

Table 3 The physiology and enzymatic properties of the engineering strains with lpp deletion or dsbA overexpression

Strain	Max. OD₆₀₀	Protein (g/l)		Endoxylanase activity		Xylosidase activity
		Intracellular	Extracellular	(U/L)	(U/mg)	(U/L)	(mU/mg)
Z1370	5.04 ± 0.05	2.16 ± 0.11	0.18 ± 0.01	2151 ± 14	12.14 ± 0.34	16.3 ± 0.2	92 ± 3
Z1371	2.09 ± 0.12	1.24 ± 0.07	0.41 ± 0.01	2919 ± 72	7.16 ± 0.17	31.8 ± 0.7	78 ± 2
Z2370	4.43 ± 0.06	1.77 ± 0.04	0.21 ± 0.01	3024 ± 97	14.44 ± 0.62	20.7 ± 0.1	99 ± 3

Except maximum OD₆₀₀, the sampling time was at the late-exponential phase, which was at about 8 h for the three strains.

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