Skip to main content

Table 5 Biomass, lysine consumption, DAP titer, DAP productivity, yield of in vivo time-course with pSU-T7-CadA plasmid and 50 g/L lysine in BL21(DE3), W3110::IL5, W3110::L5 and W3110::pI, respectively

From: Development of chromosome-based T7 RNA polymerase and orthogonal T7 promoter circuit in Escherichia coli W3110 as a cell factory

Strain

Time (h)

Lysine consumption (g/L)

DAP titer (g/L)

Productivity (g-DAP/L/h)

Yield (g/g, %)

BL21(DE3) (+)

6

24.21 ± 1.3

18.3 ± 1.2

3.05 ± 0.05

51.3 ± 1.2

12

38.94 ± 2.2

32.4 ± 2.5

2.70 ± 0.02

90.7 ± 3.2

24

41.59 ± 1.9

28.0 ± 1.5

1.17 ± 0.01

78.4 ± 4.3

W3110::IL5 (+)

6

16.56 ± 0.6

12.8 ± 0.5

2.13 ± 0.03

35.9 ± 2.9

12

31.14 ± 1.1

22.4 ± 1.1

2.60 ± 0.04

62.7 ± 1.6

24

37.35 ± 1.6

23.9 ± 0.9

1.00 ± 0.01

66.9 ± 1.8

W3110::L5 (+)

6

19.92 ± 1.0

15.4 ± 0.3

2.56 ± 0.02

43.1 ± 1.9

12

37.50 ± 2.4

29.3 ± 0.5

2.44 ± 0.05

82.1 ± 1.7

24

41.98 ± 1.4

24.9 ± 0.8

1.04 ± 0.01

69.7 ± 12.5

W3110::pI (+)

6

32.51 ± 1.1

25.4 ± 1.6

4.24 ± 0.07

71.1 ± 3.2

12

40.22 ± 1.7

31.9 ± 2.0

2.66 ± 0.05

89.4 ± 3.5

24

42.09 ± 1.9

26.3 ± 1.9

1.10 ± 0.02

73.7 ± 4.2

W3110::pI (−)

6

41.25 ± 1.1

36.7 ± 2.0

6.11 ± 0.11

102.8 ± 2.7

12

43.85 ± 1.5

36.9 ± 1.3

3.08 ± 0.09

103.4 ± 3.0

24

44.69 ± 0.9

31.4 ± 2.8

1.31 ± 0.02

88.0 ± 2.2

  1. *(+) means with IPTG induction; (−) means without IPTG induction. The errors represent the standard derivation of 3 independent experiments (n = 3)