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Table 2 Comparison of fed-batch processes performed by growing B. succiniciproducens BPP7 on the 150 L scale

From: Improved production of succinic acid from Basfia succiniciproducens growing on A. donax and process evaluation through material flow analysis

 

SA

(g/L)

Cells

(gcdw/L)

Time

(h)

Tot sugars A. donax

(g/L)

Tot pure sugars

(g/L)

Ratio A. donax/pure sugars

Ratio Gl/Xy

Tot added sugars

(g/L)

YSA/gl + xy fed

(g/g)

YSA/gl + xy cons

(g/g)

r proc

(g/L h)

Glacc

(g/L)

Xyacc

(g/L)

Feed type

Sugar feed rate

(g/L h)

FB1

26.5

4.0

47

26.3

28.9

0.9

3.3

55.2

0.5

0.6

0.6

8.6

3.0

A. donax + Gl +Xy

1.2

FB2

21.0

3.9

54

23.9

9.8

2.4

1.9

33.7

0.6

0.9

0.4

10.0

5.0

A. donax + Gl +Xy

0.5

FB3

24.0

2.8

48

27.1

3.2

8.4

2.5

30.3

0.8

0.8

0.5

0.0

0.0

A. donax + Gl

0.2

FB4

37.0

4.0

43

23.0

19.9

1.2

4.0

42.8

0.8

0.9

0.9

4.8

2.1

Gl

0.8

  1. YSA/gl+xy fed, is the yield of succinic acid on fed glucose and xylose; YSA/gl+xy cons, is the yield of succinic acid on consumed glucose and xylose; rproc, is the volumetric productivity on the entire process; Glacc and Xyacc, are the concentrations of glucose and xylose found in the broth at the end of the process