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Table 2 Fermentation characteristics of C. glutamicum strains cultivated in CGXIIP medium supplemented with initial 38 g/L glucose measured at 24 h

From: Engineering central pathways for industrial-level (3R)-acetoin biosynthesis in Corynebacterium glutamicum

Strain

Biomass (g/L)

Consumed glucose (g/L)

Acetoin yield (g/g glucose)

Acetoin productivity (g/L/h)

Titer (g/L)

Acetoin

Acetate

Glycerin

Succinate

CGR6

10.29 ± 0.27

37.42 ± 0.06

0.302 ± 0.009

0.47 ± 0.01

11.30 ± 0.26

1.12 ± 0.14

0.23 ± 0.02

2.63 ± 0.15

CGS1

10.19 ± 0.03

32.54 ± 0.59

0.309 ± 0.005

0.42 ± 0.01

10.06 ± 0.26

0.06 ± 0.01

0.29 ± 0.01

0.03 ± 0.01

CGS2

10.18 ± 0.11

33.50 ± 1.39

0.326 ± 0.020

0.45 ± 0.04

10.91 ± 0.86

0.44 ± 0.04

0.27 ± 0.03

2.67 ± 0.22

CGS5

8.67 ± 0.34

24.55 ± 1.08

0.272 ± 0.009

0.28 ± 0.02

6.68 ± 0.54

0.72 ± 0.07

0.32 ± 0.01

<0.01

CGS7

9.58 ± 0.21

35.84 ± 1.43

0.337 ± 0.011

0.50 ± 0.01

12.07 ± 0.38

0.58 ± 0.03

0.20 ± 0.03

2.02 ± 0.13

CGS8

9.34 ± 0.12

30.17 ± 0.98

0.415 ± 0.005

0.52 ± 0.01

12.53 ± 0.03

0.15 ± 0.01

0.17 ± 0.03

0.03 ± 0.02

CGS9

7.88 ± 0.45

24.45 ± 1.52

0.484 ± 0.015

0.49 ± 0.01

11.83 ± 0.35

0.29 ± 0.03

0.08 ± 0.01

0.03 ± 0.02

CGS11

8.06 ± 0.44

24.54 ± 0.46

0.497 ± 0.005

0.51 ± 0.01

12.22 ± 0.20

0.14 ± 0.01

0.05 ± 0.01

0.03 ± 0.01

  1. Error bars indicate the standard deviations from three independent cultures