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Table 3 Comparison the fermentation abilities of the parent strain and the recombinant strains using several carbon sources

From: Heterologous expression of Spathaspora passalidarum xylose reductase and xylitol dehydrogenase genes improved xylose fermentation ability of Aureobasidium pullulans

Strain

Carbon source

Consumed carbon source (g/L)

Maximum carbon source consumption rate (g/h)

Pullulan (g/L)

Heavy oil (g/L)

Melanin (g/L)

Biomass (g/L)

Pullulan yield (g/g)

Parent strain

Xylose

41.38 ± 0.34

0.39

10.67 ± 0.30

0.78 ± 0.05

1.43 ± 0.04

13.18 ± 0.47

0.26

Glucose

46.19 ± 0.45

0.61

12.55 ± 0.23

0.94 ± 0.05

0.93 ± 0.03

12.54 ± 0.36

0.27

Sucrose

48.34 ± 0.36

0.58

13.32 ± 0.18

1.05 ± 0.06

0.87 ± 0.03

13.83 ± 0.42

0.28

X5

Xylose

35.72 ± 0.49

0.37

8.23 ± 0.25

0.92 ± 0.03

1.36 ± 0.09

13.41 ± 0.32

0.23

Glucose

47.15 ± 0.37

0.62

11.53 ± 0.34

0.85 ± 0.04

0.76 ± 0.03

13.86 ± 0.35

0.24

Sucrose

46.89 ± 0.38

0.59

13.25 ± 0.51

0.93 ± 0.04

0.89 ± 0.06

12.19 ± 0.45

0.28

P1

Xylose

45.93 ± 0.64

0.35

12.36 ± 0.36

0.67 ± 0.02

1.29 ± 0.08

12.75 ± 0.41

0.27

Glucose

48.36 ± 0.51

0.63

12.87 ± 0.27

1.05 ± 0.03

0.86 ± 0.04

12.59 ± 0.36

0.27

Sucrose

47.63 ± 0.32

0.57

13.49 ± 0.34

1.24 ± 0.05

0.98 ± 0.02

13.18 ± 0.38

0.28

P2

Xylose

35.57 ± 0.52

0.23

8.75 ± 0.37

1.16 ± 0.04

0.82 ± 0.03

12.54 ± 0.27

0.25

Glucose

46.55 ± 0.42

0.60

12.38 ± 0.26

0.83 ± 0.02

0.89 ± 0.04

11.76 ± 0.42

0.27

Sucrose

47.45 ± 0.31

0.55

13.12 ± 0.32

0.96 ± 0.04

0.91 ± 0.05

12.57 ± 0.32

0.28

P3

Xylose

34.85 ± 0.61

0.26

7.18 ± 0.29

0.63 ± 0.06

0.94 ± 0.03

13.02 ± 0.37

0.21

Glucose

44.82 ± 0.28

0.56

12.40 ± 0.38

0.93 ± 0.02

0.98 ± 0.04

12.70 ± 0.36

0.28

Sucrose

47.16 ± 0.33

0.57

13.29 ± 0.17

0.81 ± 0.03

0.76 ± 0.05

12.79 ± 0.33

0.28

P4

Xylose

48.73 ± 0.49

0.48

13.72 ± 0.32

0.75 ± 0.02

1.52 ± 0.04

13.53 ± 0.42

0.28

Glucose

48.13 ± 0.32

0.64

12.78 ± 0.29

0.88 ± 0.03

1.04 ± 0.07

12.48 ± 0.39

0.27

Sucrose

47.79 ± 0.55

0.59

13.63 ± 0.59

0.79 ± 0.03

0.93 ± 0.05

13.34 ± 0.27

0.29

  1. Data are given as mean ± standard error value of each group (p < 0.05)